It doesnt sound like he is invested in the game or the actual tactics or development of it. It only sounds like he is constantly trying to create a soundbite of himself that is used as a voiceline in the game.
like he is a caricature of other casters who are that way authentically but he is attempting to be like them. And he just repeats the same things every cast, but never specifics about what is going on. He just waits for an initiation and screams the players name, then a counter initiation and screams the players name, but no genuine play by play.
I cant watch games he cast. It just feels painful to listen too.
"poLLLLARRIIISSS"
"BUT WHERES THE DAMAGE"
"IN COMES *insert name*"
it just feels all so empty and cookie cutter, anyway, we have to hold them all accountable.
Source: https://www.reddit.com/r/DotA2/comments/wjo7er/on_the_topic_of_commentators_i_cannot_stand_ares/