I honestly haven't watch many press conferences from Psaki so the "irresponsible" reference went over my head.
I imagine there was a bit of political, military, and possibly financial calculus behind the decision. We see the end result of pulling out but we don't really see what went into deciding that....nor can we see what could've happened had any other decision been made. The best possible outcome in that scenario would've been every single American/dual citizen leaving Afghanistan before Aug 31.. because 1. they would be out of harms way and 2. Politically Biden would be Able to say zero Americans "were left behind".... But war is messy and look at what had happened already.
The US had nearly 6,000 American soldiers at the airport in Kabul who were involved in airlifting more than 100,000 people out of Afghanistan........ I mean 6,000 troops there.... trying to protect the airport and 13 of them still ended up getting killed by an IED (which I hear also killed over 100 Afghanis). So idk.. I can't exactly say I don't blame em for deciding to not blow the deadline and have nearly 6,000 troops stick around for who knows how much longer for who knows how much more money for a (comparatively) handful of people who for whatever reason had not already exited Afghanistan.... I mean look at the public reaction so far..... 13 servicemen died as it was and people here are now literally saying Biden murdered them!! And who knows how many more troops could've been killed waiting for these people who might technically "want to leave" (but not yet)... or might "want to leave" but not without their non-citizen cousin.... etc.
So idk. I think Biden was screwed either way. He would be screwed if he stayed longer, blew the deadline, spent more money, and more troops ended up getting killed....and he will be screwed if whoever's left there ends up getting their heads chopped off.
But ya as you said I guess we'll see what happens.