Well I said it in one part of my post too, it's mostly an attempt to sell modern as the go-to league.
You're right. It's a witch hunt. I myself agree that banning bot will not be good as it's bad players who use them to farm. There are genuine people who use bot because they do not have the time to play.
Like you've said, people who own old cards seems to be screwed, but I hope Matt and Co can begin to look at where it's all gone wrong and begin to retrace their steps. It's a terrible situation to be in.