You're talking about the second foul (the one which led to the altercation), I think. Immediately before it, Rodri's got the ball, he's running away from his Gibbs-White and he doesn't merely shove Rodri in the back, he whacks him, hard, his right leg on Rodri's left. Furthermore, if you look closely, Rodri's left leg is slightly bent laterally. Could have been seriously nasty. That is in fact what sends Rodri over. Clear yellow card, and free kick to us. Not the slightest intention of playing the ball.
Yes, those kinds of challenges go on on Hackney marshes every Sunday. Not, thankfully, in the modern professional game at the highest level. They are sanctioned, and rightly so. If Taylor had did what he should have done, there's no incident following it. Rodri was stupid, and it's a red, but there's a lead-up to it, and Taylor is completely responsible there. (By the way, they'd already been doing it in the latter stages of the first half).
Play it back once or twice. You'll see.