Played a couple of matches already and I haven't noticed. I don't think it's that big of a deal. The announcers need to relay information about events in the game, but you're focused on other stuff happening and don't really have time to think about their voices.

I opened the article planning to dislike it, and I do dislike the man's voice (the woman's voice sounds quite good though), but then I thought about it. Sports announcers actually seem like a decent use for AI. I would imagine that it would be incredibly difficult to build decent announcers from pre-recorded voice lines… It's heavily context-dependent, and this way it can even read out the team names, which I imagine are chosen by the teams. I think this could possibly work well. I don't see how to create a system like this without AI