I still see 2-3 good PvP players in casual lose against a random team, when their remaining teammates are potato. It is the same in ranked. Crystal/Diamond tier is mostly an illusion. I sometimes saw better casual teamwork than in diamond ranked where people are stuck in meta thinking, not seeing an opportunity right before their eyes, because situational awareness is still bad - even if general knowledge is better.

If the devs decide to continue this kind of PvP mode, they should tear down the wall between ranked and casual all together. People are too shy to play ranked, not knowing it is pretty much the same nowadays. It wouldn't do much damage.

In Feast as a good Ranked player, you absolutely demolished the enemy team in a casual match in solo, we are talking like 80-95% consistent winrates here, near to 100% if you queued up as duo feast ranked players...This has definitely changed I guess. For that reason, I agree with "I do not care". There is nothing you can really do about it, carrying other players was made too difficult. You can be happy if you are over 50% nowadays, which is just slightly better than a coin flip...

Having bigger team sizes with 5 players, also contributed that you will see veteran players more often in casual just by chance. And will make it more difficult for ranked to pop later in a season, because you need 20% more players to pop. And thus the bored PvP ranked players will go casual mode to meme.
If devs would implement a more fast paced casual mode, where it wouldn't matter too much, because it is over quickly - it would be more enjoyable I guess. Maybe one with permanent rating, like Mahjong has permanent rating...

In a way I am arguing for PvP adjustment I do not like (like bringing The Fold - quick arena mode back), but if they keep the current system, it will still be better than not doing anything.
Good fix would be, that they see people like stuff like role actions and customizations in frontline, and bring it into CC too in some way. More ways to deal with situations. Then ranked would be more meaningful and set player skills more apart.

But you can already guess where the dev time for PvP will be spent on. Giving 2 new job new PvP skills, adjusting every new job max level skills and forcing them onto your PvP hotbar in one way. By continuing that way, they create always new balance problems...And then it is doubtful if there can be any more new changes. See you Patch 8.15