Wattles makes some great points in his latest video: https://www.youtube.com/watch?v=WSDe65rbhgs

Of note:

Striking the bell during a raid in Java adds the x ray halo identification effects to all the illagers. In bedrock it does nothing. (In our new playthrough, illagers constantly spawn underground, and its difficult to hunt them all down without this feature!

Llamas do not defend the trader...instead they just wander around as usual.

The Wither Rose still does not exist from Java

The globe banner pattern is still missing.

The fox is still missing! (That was supposed to be one of the big new additions!)

In addition, the illagers no longer break doors... the point of defending a village is so the illagers don't kill the villagers.. but if they are all inside AND the illagers can't break doors, then other than farms being destroyed, the illager really don;t have much negative impact to the village.

IMHO it makes for more frantic, fun, and interesting gameplay for the villagers to be at some risk during raids, so I ask that the illagers door breaking mechanic to be restored.