HEROES: WTF?

Okay, I think Mohinder's marrow-deep stupidity is infectious. That's the only explanation for a bunch of bad decision-making on last night's episode.
Let's recap [spoilers!]:

• Mohinder is responsible for reviving Noah... and then bitches him out, saying that Noah being shot in the eye was all Noah's fault (my logic professor would love to see that diagrammed out!);
• Micah tells his worthless, greedy cousin that he has valuable comic books (I can excuse this one, 'cause he's a kid);
• Peter and Adam go after Victoria Pratt and Peter does pretty much one dumb thing after another (and even Adam isn't too bright if he let her blast him with a shotgun--guess regeneration limits one's peripheral vision);
• BTW, what the hell power did Victoria have, other than toting a shotgun?
• Claire goes after Elle, who watches the scattering of the ashes while working a Slurpee, even after Elle knocked her and "West the flying boy" out of the sky last week;
• Peter chooses to side with Adam over Hiro at Primatech (okay, in what universe does THAT make sense? Didn't Peter get a hint that Hiro was one of the good guys last time?);
• and finally (the whopper), Maya chooses "Gah-bree-yell" over her own brother because a) they're BOTH murderers (wow! what an insight!), b) her brother Alejandro "hates" her for killling his unfaithful wife (something we've never seen even suggested) and c) apparently Maya is not only gullible and guilt-stricken but she's horny too. Probably doesn't hurt that Sylar's a good looking guy.

So we see a HUGE amount of stupidity last night. Was this...

1. because of the hypercompressed season?
2. an example of "we need Outcome X so people have to do Stupid Things 1 through 15"? or
3. a show bottoming out in its sophomore season?

You be the judge, friends. Comment below.