Tenacity up should mirror Potency up

If you think Tenacity up is mirrored by Tenacity down, just use it without cleansing pre-existing debuff on the characters. In my opinion this could be ok.
If I'm faster I will put dozens of debuffs on you. At your turn you'll just avoid any other incoming debuffs for your next turns.

Yoda is actually working as it is, am I correct? Nobody is unhappy with his behaviour.