Could you create a plan for teachers to use in schools where students could participate and other things

support.

The membership does not really provide useful features (a few extra sprites, a PFP frame, badge, “Member” icon). They are just rewards for donators to Scratch.

I don't think that this is of any use sinc ethe membership does not give educational benefits.
What do teachers need their students to have cat blocks for?

Why though? They're add ons, not teacher resources.