I don't know the percentage but it was one of the most wanted features in general (next to achievements which they don't want to give us cause they don't want us to "grind" the game...).

Other than that looking at how many well known streamer and pros left the game in 2018 I think we can agree that something must be wrong. The last expansion had no impact on the meta. Majority of decks are the same as before. So great, you are looking forward to 130 new cards and then 5 are getting played. Totally worth it.....??

If they at least would get their crap together and release new cards to shape the meta in a positive way but nope, if anything sees play it so cancerous that they nerf it (after a few months). They are completely out of touch with the community and with their own game in HS.

Personally I think the game is in the worst state it has ever been and the cards-only expansions are hurting everyone who wants to take a break or whatnot cause you gotta play fulltime to catch up again (or spend money obviously) to have more than one meta-deck available to play with.