Honestly, they should just give some rework about synching in general, especially when many other mmorpgs can do it just fine without too much issues on retaining skills. Heck even WoW with its time travel events has shown they can do it pretty fine (i wish all of the dungeons had this though).

And if someone says that it makes those dungeons faster and easier to do well....that's old content, it's dead, it only serves as an exp fodder for levelling other jobs nowadays and it could actually make it better for those new players who need dungeons for story since more people would tag along (It's still 20 freaking minutes of mindless bashing buttons people!!!), so what's wrong in making them easier? If anything it would make people wanna run them more often than not.

....but considering I was even told that having 2 buttons to press is more challenging than 3 (because...logic?), as always, I don't think this will change so...we can always dream about it?