Fact #2:

Corebook p.17
If a power or ability is countered or lost, all game effects of that power or ability immediately end, but any actions already in progress are resolved normally

By reading this line the concept is more clear, this are the proof

You've got it. Those two things together are why it works the way it does now instead of the way it did before.

Why is picking up blades different than picking up steal energy?
Flurry is two separate attacks, right? One is a free action, right?
Why wouldn't I be able to blades on the 2nd attack?

Because blades take an action to use. Steal energy doesn't. And you can't be given an action durring another action. That's why harpua said its about timing.

That's not why, exactly.

BCF is not an action unto itself, but it is activated when you give the character a close combat action. You give that close combat action before the first attack, so if it shows up before the second, well, you're way past the point where it would have become activated.

About this i have another question, i active flurry and i know i can combo with BCF, is this just work for the 1st flurry or for both (since the other is just an attack and not an action)?

It is for both. It is active for all of the attacks during a close combat action. The close combat action doesn't resolve until after the second attack.

I didnt know my guide would cause such controversy.

Ahh I get it now. Action vs. attack.

So whatever is active at the beginning of the action is active for the duration of the action. I suppose this is why you declare blades at the beginning of any close combat action even if you don't plan on using it.

Actually, you don't have to declare BCF at all. It is always on during any close combat action. You cannot ever not activate it. (You can simply choose not to roll, though.)

A question about this from wording in the Player's Guide, page 7:

Flurry
Any powers that are not in use when the first attack is made with
Flurry cannot be used for the second attack. Any powers in use
for the first attack are in use on the second attack unless the power
has been lost.

We've covered why Blades (or similar powers that only activate when a close combat action is given) wouldn't work with a second Flurry attack, but the way this excerpt from the PG reads it seems as if any powers which aren't used for attack 1 can't be used for attack 2, Steal Energy included.

Is the phrase "in use" here referring specifically to powers which would piggyback onto the close combat action given to use Flurry? Or would Steal Energy circumvent this paragraph by triggering on damage from attacks and being mandatory healing?

On a related topic, If character A outwits willpower on character B, then character B attacks and damages character A causing them to lose outwit, will character B take pushing damage?

I'm guessing yes.

Going a step further if character A was instead defeated by character B's attack and character A is removed from the game, is character A's outwit still in effect until the end of the action causing character B to take pushing damage?

You have chosen...poorly.

WP isn't a factor until it is checked, which is after the attack would have resolve.

WP would be active in both cases.

Additionally, section 11 of the players' guide still has this text for flurry:

Flurry
Give this character a close combat action. After the close combat
attack resolves, it may make a second close combat attack as a free
action. If this character loses Flurry before it makes the second
attack, it can't make the second attack.

And there is this entry for flurry which also addresses what happens if a new power is revealed or lost mid flurry. It seems to conflict with the "any actions already in progress are resolved normally" caveat in the rule book.

Flurry
Any powers that are not in use when the first attack is made with
Flurry cannot be used for the second attack. Any powers in use
for the first attack are in use on the second attack unless the power
has been lost.

Has this all been clarified somewhere?

This last PG had a few errors like this, the other being about Multiattack still being able to activate the same action.

The Oranges have already confirmed that both are incorrect and work as the new PAC and rules say. (you finish flurry regardless and MA actions must be different).