If you look at the numbers through the country outside of BKK, you can see that the easing of restriction already results in spreading the virus.
You can take me up on this in about 2-3 weeks, when you will see the number of deaths going up again.
85% is the figure for Delta. But doubtful they will wait until then. Too many people in BKK selfish because they feel safer with the vaccines they received before anyone else, and not caring what happens in the rest of the country.