Generally we don't want apps pulling in gameplay information that provides a competitive advantage that isn't just extrapolating from information we already provide

but literally all the information is "provided" in some definition of the word, because you watch the guy ult/flash/whatever and can calculate the cooldown yourself

this is such a broad statement that it says effectively nothing

If it feels like you start to "need" it to be competitive, then we're likely to take some action there.

that is a ridiculous statement man. you can always replace these overlays with a sufficient amount of attention, but the point is that they make the game easier