i dont mind syncing but i really hope SE let me use all skills despite level sync

[Snugglebutt]

I do think it's possible: in other games they allow you to use all of your cap talents and skills but with reduced potency and damage, so I can see this being possible...but it depends if they think it's worth or not (or just lazyness)

I wouldn't say it is lazy to not do it, more like it's not worth doing. The only real benefit would be so people would not have to adjust their end game rotations, a lack of desire to adapt because if such occurred and if SE did it then by the end of the vast amount of balancing adjustments and potency changes you wouldn't clear it that much faster. Certainly not anywhere near as fast as simply going in unsync'd. It is a vast amount of work that would need to be done on SE's end for something that has hardly any benefit, especially since can already go in unsync'd mode if wanted access to all your skills and such.