I don’t know what you are trying to imply, but if you want to believe that guys are somehow running submaximal 60s en route to their best 100s, that’s on you. Even if you want to look at the longer training period and everything, the fact is that the fastest 100s still come after the fastest 60s. If you want to believe that people are changing their acceleration patterns for the better, then you may need to lay off the crack pipe. Nearly every time someone runs a PR 100m, they run an en route 60m PR. You can count this to be the case for nearly every 100m man.
Let me ask you this as a better question, how much time did Bolt lose to 60m during his 9.58 by not accelerating in a manner more appropriate for the 60m?