Many would disagree with your statement. Mostly on the fact that the tests before and after the hot one were normal.
Lots of “odd things” were brought out in the next years fighting about the way samples were taken, tested and stored. Enough that a lot of changes were made.
Floyd's side raised enough questions that he would have been innocent in a jury trial. But the charge would have to stand or all Hell would have broken loose with other riders.
At least this years TdF was clean - so far.