Grubby using his stream overlay for rosh and aegis timings

First let me say I don't want to stir up any "drama" and I like the Grubster. But what is your opinion on this overlay he uses for helping him with timings?

Maybe it's just me but I think it's not cool that he routinely checks his stream overlay that automatically tracks Rosh & aegis timings to know whether rosh could be up and how long the enemy hero still has aegis without him being in vision. For me manually tracking and checking those timings is part of the game, that demands attention and rememberance.

He said multiple times he doesn't look at the timers and it's just for the viewers but it is super obvious, since he calls out the exact timings to the team and he does not track it manually.

I've never seen a streamer do this tbh and it surprises me that Grubby out of all streamers, who is an ex progamer and very adamant about manners and fair play uses such a third party tool.