The upcoming airdrop will be no different from those that were before. Almost almost all those who received airdrop sell the received coins in the first minutes of listing on the stock exchange, since everyone knows well that after the pump, there will definitely be a dump.
considering the most airdrop hunter sole purpose was gaining money doesn't matter if the project itself is falling then I could roughly guess as you said the dumping will take place in first minute, its kind of self fulfilling prophecy honestly, the airdrop hunter is dumping their coin because they know from looking at the history of the same similar airdrop it always dumping after some moment, but the reason its dumping is because the airdrop hunter itself just trying to dump it as fast as they can to avoid future dumping, but I think the developers of the project have already definitely calculated such possibilities.