It's in the first post...

You're spot on about 2. Technically, it seems for using it in a terrain attack, "remember A1" does seem to be in play until issue an errata or clarification (which is ridiculous).

So carrying an obeject he can get Doomsday off that 20 def easy, which puts him more stacked against his favor than I first thought.

I'd personally say they didn't intend for him to activate the 2 unavoidable with object attacks since they gave him the improved abilities. Still will need clarification.