In principle I agree. Changing so our clocks so a few people don’t have to do seasonal hours is silly. The only problem with everyone using UTC is the days. Incrementing the day, or flipping the date in the middle of a workday is annoying. It’s solvable, but just sticking to a time is good enough.
As long as a bunch of the world is changing their clocks one way while a bunch changes it another is done away with, conversion to UTC for coordination is simple.