That's precisely why I'm not asking for them to actually do that, from a player's stand point, it would be the best way to handle things but ultimately, it would cost them more money that it would bring them and while I'm not a fan of always asking for more money, here, it's kinda easy to understand that it would probably harm the company more than it helps it.Ye but Gwent was supposed to be a multiplayer game with the intention of being something alike hearthstone no? Like an ongoing project that is played continiously with cash shops to support it etc. Cyberpunk is a single player game with no ingame cash shop where you get the money once on the initial purchase. They already got the money from the people who are interested in the game. An overhaul would just cost em money.
I would also add to your point that the cost (in term of both money and ressources) of revamping Gwent as a whole is certainly not the same as doing the same with CP.