Would you follow through and pay? Brady's last TD

[Snapolit1]

I don't have a problem with "last".

As of right now, the last TD Tom Brady threw is well documented. And until he throws another one that ball is 100% the last TD pass of his career.

I think "final" is a little more problematic.

Interestingly Lelands also put this in their write up:

Unlike other items used in the commission of a famous last event, this ball has dual significance because it was also used to establish Tom Brady’s record of 86 career playoff touchdowns. To put that number in its proper perspective, the player in second place, Joe Montana, has a total of 45. Like most of Brady’s passing records, it is a mark that will almost certainly stand the test of time

So the seller is saying this has significance for two reasons.