Are you being deliberately obtuse? Dave loves the vita, but I've never seen him be unrealistic about it's performance or expectations. He understands why it doesn't do well. Jeez, tone it down.
As to the second post, he was saying that it has declined from it's heyday, not that it would have done better on either of those platforms. Stop reading into things with your hackles up. No one is saying mh would have sold more on the vita.
And on the third, they were referencing how capcom was able to reuse assets from the psp for the 3ds, but that Sony would also have had to pay to cover potential lost sales, which, as the poster stated, would have been extremely expensive.
Seriously, you need to tone down the defensive filtering. None of those posts was pushing a pro Sony agenda.