I think this is an excellent idea because I agree with your points.
In addition, I have finally done the math on my accounts that are in wild, and I realize that there's no way it makes sense for me to keep most of them active in wild. So I will try to find scholars to play them in Modern or they will sit idle. The reason is there simply is not enough benefit in mid-gold level on down to cover the costs of the Wild Pass and the bot provider.
I'm not complaining at all and I'm fine with me not playing those accounts. I do think there is going to be a huge drop in accounts playing in wild though at the low end as it simply doesn't make any economic sense at all to continue with the lower rewards.
I 100% agree with the idea that the Wild Pass is a way to compel players to invest back into the system, and I voted for the proposal from Matt, plus I helped to fund the proposal to take away the paying of Vouchers too. So I'm not trying to undo anything that has been done, as I think those changes were definitely needed and good for the game. But I do like this proposal as an alternative way to encourage people to play in Wild.
I don't think this proposal will help much at the low end, but if it passes it should be a way to encourage some players to get some SPS to be able to play high Gold level and on up. I think that is a plus and thus I support this fully if it ever gets to a proposal.
Wild is going to be tumbleweeds without something happening. Players are not going to pay with DEC for the pass.