While I can feel the pain that you must be feeling of making the cut and not getting to play, you have to take responsibility. You didn't read the rules, you can't use the excuse that I never read the rules - ask Dustin Johnson how that played out in the PGA a few years back. If you are playing in a PGA event, a local club event, etc. you have to check to make sure you know your tee time, nothing different here.
WGT is played all over the world. The time can't be stated in terms for every player in the world. There are overlaps in terms of days. It is Saturday here but Sunday if I go more east. It is the players responsibility to take control of things like this.
The countdown clock is good, saved me a few times when I wanted to keep my days played bonus going. A few times I have forgot that the cut off time is not based on midnight in my time zone............that is my fault not WGT.
The green speed, I'm not in the tourney this year. I did play a practice round with a fellow club member under those conditions. I think it is great, what a curve ball that WGT threw at the players. Going from championship green speed to slow. Green speed and winds are the only real variable that WGT has, I think it was a stroke of genius and the fact that people are talking about it is the proof. Similar to championship green speed at Oakmont when we played there or the 30 plus MPH winds when we played at St Andrews and Royal St George.