I don't know. Magic the Gathering, while flawed, is a real game that can be played with skill. These online "games" have barely any game in them at all; it's very telling that in many of them you essentially spend money to bypass the tedious parts, which is actually all there is (as well as buying trinkets, skins, etc).

If there's anything to compare these kind of "games" with, maybe it's precisely with online gambling. They are thinly disguised online gambling, which makes them worse in my book.