In the same way people argued that Rogues should lose Gouge last season, because they have too much lockdown potential,
while the whole problem just stems from a completely different issue.
The problems are not Gouge or Poly or whatever class mechanic was in place for the last 17 Seasons.
The problems come from how different the impact of those abilities was in past seasons.
Earlier, Rogues just controlled the game and enabled setups for their partners, while having some burst for exactly those setups. Now look at how different the gameplay was compared to last seasons Rogues. Rogues did enough sustained damage on their own to create pressure. Paired with their insane survivability, this allowed them to just pressure a target 24/7, where in previous seasons, rogues would just blow up in stuns and couldn't chase your healer to africa and beyond just because they can.
So, instead of taking a closer look at the root of the problems, people argued that Rogues had too much lockdown potential and cc.
It's the exact same issue with mages. In earlier expansions you couldn't just facetank meleecleaves in the middle of the map, just spamming poly/frostjaw/RoF until one goes off because those melees run out of interrupts and their healer has no dispel currently.
But nowadays, you have exactly that gameplay. But instead of looking at how that problem is created in the first place, people look for the way easier solution of just scratching the surface of every problem in class balance and asking for bandaid fixes.
If those bandaid fixes to core class mechanics continue, you will have every class at warlock level of dumbed down in no time.