Still an improvement, at least i won't see anymore "blue coin drypass r1, oppo drypass r2" bs, both in constructed and arena (here is even worse imho).
Why exactly did this behavior become routine? Rhetorical question, coin flip. More precisely, the red coin player amplifying the flip into such a huge advantage the blue coin player gets completely fucked . Simple, zero thought solution, drypass R1 and force the red coin player into conceding CA to take R1. Insert hand limits. The only difference is a blue coin R1 drypass doesn't force the red coin player to concede CA. That other problem where the blue coin player gets fucked still exists. The hand limit solves nothing. It just forces the blue coin player to bend over and take it. All in the name of preventing R1 dry passes.
Here is another approach. Consider the ways the red coin player can amplify the flip into a huge edge and address them. Oops, that would require work. Sorry, my bad.