Terrible terrible luck for both players. Taylor because he went full pelt for the ball and caught Coleman in the wrong place, and Coleman for obvious reasons.
Not trying to defend Taylor and pretend he did nothing wrong. It was not a good tackle - sounds like he was completely devastated and it doesn't sound like there was malice in the tackle. Just trying to be objective in that we see lots of tackles like that that sometimes people get away with it, but I think the after effect makes it worse.
Best wishes to Coleman though, devastated for him