Hi Steve

I agree with much of what you said.
However " going for the ball" and missing it is usually ( not always ) given as a foul. I agree there was no intention to foul but he got it wrong and kicked the keeper in the face. The game was held up for nine minutes because of the goal keepers' condition. That is why the ref gave a red.

You are correct in that the incident spoiled what was becoming a really good game.

Cheers

Mike