Not really, for me its more of the flow of the battle rather than relying on a mm monitor. Granted a person's stats will probably reflect their playstyle, but at the same time humans are pretty random creatures, so every game you're in can be random. The superunicum can suddenly potato while the potato has that youtube worthy awesome match, anything is possible.
If you're able to influence the match base on how the match flows, than it'll make an even bigger difference and that separates a good player from a bad one. At least base on my experience. I rather rely on my own knowledge and observations because Its much clearer imo. For example, teammates are not pushing up the flank (which im also at) even though there are very little or no enemies on it. I'll push forward, and people will usually just follow because there is literally nothing. If need be a little prodding in chat (politely of course) usually gets the job done. Using mm monitor is literally demoralizing yourself at the start of the game for no reason tbh.
What do you do with that information? Get upset with your teammates? Adjust your playstyle according to the better teammate etc? Im assuming you just get upset with your teammates (though do correct me if im wrong) so what is the point then? If you use it to play scientifically (i.e adjust your playstyle in battle), then has it helped you so far? If not, then why use it?
I usually give my teammates the benefit of the doubt cause at the end of the day you will not know how the battle will end (unless they do something really stupid during the battle). Something to think about I guess.