Is it incompetence or intentional?
If it’s intentional, how will they, their kids, and grands gain in the long run from the outcome?
It is intentional.
The thing to ty to understand is WHY.
Because TeamTrump had identified about 100k deserving Afghan patriots to evacuate [+ all the Americans, obviously]. But TeamBiden didn’t want a hundredK of patriotic, Trump-grateful, freedom fighting nationalists at the front of the line. So they scrapped the plan, knowing that chaos would ensue, and are now leaking the list of patriots such that the folks getting evacuation are the top of the heap of whiners, guvmint-dependent, “peaceful muzzie”, misunderstood, mediotic, elitist [bribe paying], future democraps. From their perspective this is a brilliant plan.
If the records of Afghans who worked with the US were not destroyed then it is probably intentional.