Tahm kench, wrong nerfs

Tahm kench nerfs to his spells (removing passive application on spells) hurt support tahm kench more then top tahm kench. Now they are boosting his AA dmg to 4% of TK max hp. Guess what, that is only usefull for top tahm kench. Bot tahm kench will rarely be in a position to AA enemy.

I thought they wanted to reduce the strenght of Tahm top, not tahm support. Am i wrong?

With the new shield shredders, the balance team seems to be way off with their adjustments. To me it seems that he isn't viable anymore.