Taric's ult is way too strong in too many situations
Honestly, the community kept saying to stop releasing invulns, and now we get aoe Kayle ult on a champ that builds nothing but cooldown. The thing is up every minute. Normally when one person goes invuln, you just kite or focus a different target but what can you do when there is no target because the invuln area is huge?
EDIT: I should also mention that with max cdr, depending on the intelligence mastery, this ult gets down to a 60 or 55s cooldown. That means it's up for every fight. It destroys hard engage characters automatically.
but things can still go south for his team. Also as mentioned knock backs become super usefully vs him.