I agree with that. Work on your fundamentals at close range. That's all you can really do. Wind at long range is more of an art than a science most times.
Two weekends ago, we were shooting at 1550 in northern Arizona. About 7000 foot elevation. Wind was all over the place. Mirage was terrible, but at least it gave you something visual to judge the wind down range. Using a kestrel to measure wind was worthless because it changed 4 times between you and the target.Watching mirage and making a judgement was the best wind reading method, but there's just no way to simulate that at close range.
Use your short range practice to perfect your fundamentals. Everything gets maximized at long range. Some things you can control, some things you can't. Fundamentals is under your control. Wind isn't, but experience helps.
Use your short range practice to perfect the things you can control. Realize that there are things that require shooting at long range to become better at (not perfect). I don't think you can perfect wind at long range, you can just use your past experience to help judge your next shot.