Well the speed endurance portion is going to show the biggest difference from 60-100m, though might show earlier in less developed/qualified athletes.
In my eyes, it is true that many lower level athletes are not awfully fit and can get gains there, but I’m not sure that is really the limiting factor. There are plenty of 10.0-10.2 guys who are not in fantastic shape. That isn’t to say it would not help them, but it clearly isn’t the sole or primary limiting factor in sprint performance. When it comes down to it, most 100m races are determined by who hits the highest top speed.
At your level, you need to work on everything. Your splits seem to indicate relatively better acceleration than top speed, however this could simply be related to timing (most people’s timing errors tend to be heightened in early/shorter races). Either way, if your ultimate goal is a 6.5-6.7 in the 60m or something along those lines, you’re going to need big improvements all around. I think you should probably just continue with a well designed and thought out program addressing all qualities in a relatively balanced manner and once you get to the point where you are looking for very small gains, worry about specialized improvements in specific areas.