I mean, maybe some players hold out for some amount of time to get a little more guaranteed money, I the post I quoted seemed to be worried he would sign at all. When was the last time a drafted player held out and didn't sign with the team that drafted him? Airontae is gonna sign.
Maybe his camp read where Nick tried to trade up to #38 for Tae and are trying to use that as leverage in the negotiations.
Plus his new teammate just got his whole contract guaranteed IIRC... maybe Ersery (or his agent rather) wants the same
A clause a few draftees have held out for this year is the ability to get guaranteed money clause in their contract, if a training camp injury occurs (or something to that effect). https://sports.yahoo.com/article/bengals-no-1-rookie-holding-210649956.html