Shaco 9.20 and 9.21

I tried to reach Riot through a support ticket but they said they can't reach out to the developers and I should post it here, so here it is:

Dear Riot!

I am a mid-gold Shaco main for years now, and I was happy about the 9.20 changes, I felt like he needed some love.

I understand, that after the buff/mini rework he became too powerful in the early game with the jungle cleartime (and/or early lane control) and I understand that you felt like nerfing that. I think the 60s->40s box duration is a nice solution to this problem.

However I think that after the early game the longer box duration shouldnt be a problem since it never was. I think later in the game if I spend a minute with planting boxes during a siege or something similar situation I should feel rewarded if I can lure the enemy into the trap(s).

If I try to cut off the enemy's escape routes with boxes and a minute later turns out I predicted it correctly it would be sad to see the box run out of time just seconds before the enemy walks into it.

So my idea would be to give him 5s/W lvl box duration every time he levels the ability (like 40/45/50/55/60s), so at W lvl 5 he can still plant a box for 60s (+ap ratio) thus being able to set up the same traps as before.

Thank you for reading my idea!

Sincerely, a player who plays since s2