Yeah, probably that was miscommunication, guardian though he's still at ct ramp or something. But I must say navi is really overaggresive too many times... I know it can catch enemies off guard, and if you're a bunch of good aimers, you can get "fair" 1on1 duels that way and just outaim the opponent. Though in a clutch situation like that, it's 100% confirmed that the correct move was to hide, wait for the defuse, eventually peeking together from 2 sides.
And about seized - he was trying to do what I mentioned above... Suddenly 4on2 went into 1on1, so he tried to peek before pasha starts defusing to catch him with smoke in hand / looking the other way / something like that. It was extremely risky, so most people in pasha's feet wouldn't anticipate that, yet pasha was still running around with m4 checking spots and then just won the aim duel. ^^
IMO the blame can't go on seized, cause he was the last and he actually got a kill just before that (in 4on2). When your teammates suddenly do such an epic fail, you're pretty much clueless wtf is going on and probably will fail too. :D I'd blame guardian if he did that on his own, if not - blame the guy who shouted fake info or convinced him to peek.