I 100% agree.
I would just like to add that I think it's too optimistic, by far.
For 'Wild' cards, IMHO, there wouldn't be a 'reduction' in rents- there would no longer be a 'rental market' for those cards- I mean, who would rent them? and why?
With no rental market, there would be (almost) no card market for all OOP cards- other than a PURE CP market.

One thing I really like about this proposal though- 'Whales' would really mop up! With no way to rent up, play some games, earn some Glint and SPS- new players would be completely shut out of the game.
Sure, 1 SPS = 1 DEC and DEC would probably drop to $0.0005 and the value of all the OOP cards would drop to ~10-20% more than their Burn value but hey! I'd be able to make a lot more SPS in Wild.