The NFL has claimed they can't adopt new technology onto the field, because they can't accurately determine when a ball becomes a dead ball due to a ref blowing their whistle, signaling a play is over.

That actually makes a ton of sense. As the ball can tell where it is on the field, but can't determine when a player is down or when a whistle has been blown.

But according to this video, the NBA has been whistle blowing technology that would solve this issue, and the NBA has been using it since 1997

very interesting.

IIRC, part of the problem is that the play stops not just at the inception of the ref blowing a whistle, but when he meant to blow the whistle.
Further, many time forward progress had been established before a whistle is blown.

With this technology and ball technology, you can probably track BOTH forward progress and where the ball was before the whistle was blown, or where the ball was 1 second before the whistle was blown.

Now the computer wouldn't be able to judge which should be the final spot between them, where human refs will still be needed to determine which area, but between the two, they should be able to take 90+% of the ball errors out of play.