Hey
For me it's not a skill issue, i came back recently after a 2 year pause and i mostly play with Turtleman, we played a few dozens games already. We play since 2007 and have played countless games. We both noticed in the firsts two games the behaviour change.
We are not especially low skilled (1800-2300 global depending on season), inexperienced, or imprecise, but we still get "random" T3 mexes occuring almost every game. We just got better at suspecting and pausing them.
It's not really the same thing as asking for units in factories imo. When you know you will be able to afford a T2 mex in a heated game you just get the first T1 mex nearby (with keybind or unzoom) and press upgrade button.
I don't agree that doing the error almost every single game that gets intense or with a big map dozens and dozens of time with that kind of experience when we almost never miss anything else comparable in a game is "just on us for being autistic clickers" ; it is a little more complicated than that.
I'm glad to see we are not alone ^^
I don't care how it can be fixed just give me a solution