I'm thinking this is a bit of a red herring.
FIA/FOM are still struggling to get the 2021 Regs and a new Concorde deal done, I suspect they have thrown this in the mix to stir things up in the negotiations to try to keep to the late June deadline - well for Regs anyway.
When you're in negotiations it's not uncommon to respond to opponents who try to run the clock out with additional new terms much worse than what's already on the table.
If it's not a bargaining chip and they really are pushing for it I agree it will help no one and make the spectacle worse all round. With such limited testing how will teams be able to develop themselves out of a hole.
We're likely to know the championship winners after just two races if teams can't keep bringing new bits to try race after race - and in some cases day by day at some tracks.