If you think that "unusual telegraphs" and "catch this" aoe patterns are what it takes to make content overpowering and difficult, you need to revisit the normal msq content from previous expansions. More than a few dungeons have rapid fire aoe attacks where every few seconds an aoe will show under you while there's other aoes either appearing or moving around that you need to be mindful of. There is a single telegraph if this tier that comes to mind as "uncommon" and it's the knockup one from M1 and that's only cuz there's a little dude in it. Every fight has some variation of "this lights up so it will be bad" and the only debuff to manage is the hearts from M2.

Simon Says should not be an overbearing challenge. Not standing in bad should not be an overbearing challenge. These are things that the game has been having you do in the normal msq content, not even considering things like alliance raids or normal raids which turn up the required thinking nob by 1, maybe 2 clicks. We're at level 100, we've been shown every lesson that normal content can teach you. The normal raid is OPTIONAL content geared towards providing a higher CHALLENGE for the benefit of better gear and a little extra story. Either improve to meet this challenge, or just accept that you're not able to reap the immediate benefits from it. Maybe wait a few patches when the normal dungeon gear can give you the number edge.