Ahhh, Dave. So simple, so naive.
While the other proposal (put bots back in Modern) does exist and while it may mitigate some of the nightmarishness of that format- it has it's own issues, so let's not engage in magical thinking but instead concentrate on this proposal.

1. According to Matt's numbers ~45K of the 75K accounts playing in Wild, play <= 50 games/season- which according to my calculations is not 'a minority'
2. Increasing the amount of SPS to get the same multiplier IS reducing the multiplier/SPS- it's simple math. If 10K SPS = 8x changes to 20K = 8x, then the multiplier/SPS has gone down.
3. Yes, this proposal will 'get rid of' (at least) 60K active accounts, of the 75K currently playing in Wild- all the ones that remain will be bots.

I did not 'create in my mind' these reasons why it will be bad- these are real, actual reasons this will not achieve the stated goals. In fact, I never said it would be bad- in fact I believe it will be beneficial, for many. Accounts that don't own/rent cards or SPS but play many games, for example, will do really, really well.