It's because we've basically had enough of the US political/military leadership being incompetent to the point of being a hindrance, so we're getting people out ourselves. We don't give a fuck about "respecting the Taliban" or having our arms tied behind our backs like those poor bastards (Americans) have been ordered to.
When one of your key and closest allies is basically saying "fuck it, if you're too useless to do it, we'll do it ourselves", you know you've done fucked up somewhere.
Biden, his administration, and his cronies in the military's upper echelons are a goddamn disaster for America.