I saw similar results initially when I didn't do any training. First game was against a team 10 quality points below mine. I had something around 80% possession and twice as many shots. But it ended in a 0-0 draw. The match report said I need to spend more time in training ground.

Next match, I was facing another team about 10 points lesser quality. Again, I had significantly more possession, more shots, more shots on goal, and high passing %. Got a 1-1 draw and the match report commented again on training.

Both times I used the right tactics. So I started messing around in the training. I faced an equal quality team next and won 3-0. Match report said we had great training.

I've won every game since. All I can conclude is that you have to do those two trainings before every match or you get dinged somehow.