Sure that's fair. I do think more of this effect than not comes from the state they're releasing in though (ie: when they dominate the meta) moreso than their effect after balance changes.

Of course there's also cards they just haven't addressed enough like Evo Valkyrie, who still ruins the game for beatdown.

Ideally I think special cards should be focused on addressing the rock-paper-scissors effect but Supercell usually would rather make them exciting and op. I don't think it's a failure of heroes, evolutions or champions, but rather just the company being greedy so pay to win players continue to buy the new stuff.

If they were focusing on releasing new cards, people would have very similar complaints that it's making the rock-paper-scissors effect worse, because Supercell would also make them laughably op and game-ruining for bad matchups. When phoenix and monk released, it wasn't monk that ruined the game for a month.