I wouldn't call that choking.
I would call it complete lack of protection and not being prepared for it.
They had a revolving door at LT and RT, and I don't think he understood just how difficult it would be.
Additionally, his go-to move of running out of danger to a first down went out the moment he got injured.
Even so, he put the ball on some of those receivers and they flat out dropped it. Multiple times.
Sometimes it just isn't your day. That team as a whole had a bad day.
Much of that was the Bucs defense, but you cannot claim Mahomes choked.
That Bucs team was dangerous back when it had a garbage QB. The moment they got Brady and filled their hole in the secondary at safety and then got Fournette? It was over.
And with Brady came Gronk.
Nobody could have beaten that Bucs team in the playoffs this year. The line with a healthy Vea and Suh, the LB group and healthy secondary combined with Fountette, Jones, Gronk, Evans, and Brady on offense? Good luck.
That was less 'choking' than one team having massive issues vs a team that had almost none.