[Suggestion] Cosmetic set bonuses for endgame equipment

Greetings and Happy New Years.

Currently, it appears the developers of FFXIV seem hesitate on adding set bonus effects for player equipment. Most likely in fear that these bonuses will be game meta breaking or will encourage other players to shame people for not having specific stat or effect bonuses for the PvE content such as raids for example.

This is why I propose the idea of adding set bonus effects that only affect the player cosmetically instead of for raid progression. For example, if I were to wear 4 pieces of BLM AF3 gear it would cosmetically change the spell animation for my Fire IV and Blizzard IV spells that's different from the existing ones.

I feel like these changes would encourage more people to try out endgame content in pursuit of chasing after these incentives, since there are already lots of people out there that run the same content over and over for cosmetic items like mounts or glamour.

What do you folks think? I'd love to hear feedback or opinions!