Agree with everything you say, but, let's be honest, we're supposed to get 90 minutes football being played.
The fans are, in effect, being short changed, and have been for years. It doesn't happen in Rugby or Hockey, so why not football? Football fans (myself included) may whinge and moan about it, but nothing is ever done by those in authority. Again, why?
A good few years ago (in the 1970s), I took a stopwatch to Maine Road, against (I think) Middleborough, and stopped and started it like a countdown clock. The results were frightening: 21 minutes actual playing time in the first half, and 23 in the second!
50 years on, and nothing seems to have changed.