Don’t forget that a 76 key keyboard is not just for piano players and it does not have to have weighted keys. I will give just one example of how a 76 key keyboard can be used other than piano. You can use it to get an additional split point.

An if 76 keys were just for piano players, then the Motif and M3 76 key offerings would have been weighted. They are not.
I just don’t see why would a person who likes just 61 keys in their PSR 910 and T3 have a problem with 76 keys if it does not affect size and weight. It makes no sense other than just being difficult to those who would like 76 keys.
As discussed in other threads, the real issues is not persons preferring 61 keys to 76 keys but persons preferring a lightweight and compact keyboard.

The first manufacturer who makes a 76 lightweight, compact and mobile arranger will solve a lot of the world’s problems.