Buy all the previous locked battlepass items

It's a good idea to sell previous battlepass items as now done but the main reason for me is to get all (incl.  not opened) premium items not just free ones.

Yep, I just missed some of the seasons in a row but still want cosmetics from it.
But it impossible to get. Even buy. I can only buy free items from previous pass.
It's no sence in bying just free items from previous seasons. I want the premium ones specifically.
But why it's not yet possible?

I can get free items just playing the game each season. And buy seasonpass for premium level rewards but the thing is - this is time forcing and telling me play even if I cannot. That is awfull.

And if I was not fast enough to level up or missed season I want to be able to buy lost cosmetics. Not to losethem forever.

I sugest adding packs with all items from previous packs. Cause I mainly want cosmetics from premium pass rewards.

For example, Ubisoft opened time-store in Motorsport but items comes periodically. Nothing lost forever. And In R6Siedge they got marketplace for the cosmetics.

Why here is it immpossible to sell us missed seasonpass premium levels exclusive items?

Can this be implemented?
Thanks