Board is Qs Tc 2d 8h 2s

BTN 3bets v UTG and barrels.

So on the river, GTO+ likes these frequencies for KJ:

KJcc - 84%
KJhh - 0
KJss - 0
KJdd - 13%

I'm trying to work out why it favours a near 100% jam with the clubs but no bluff at all with the hearts or spades.

Trying to think it through I can see that KJcc would peel flop and possibly turn but so would KJss.

Thoughts?