It probably has got something to do as well with the fact that as fans of the sport (which commentators should be), they probably have got a feeling that you can't keep bringing up the old stuff (i.e. past doping affairs) if you want to get the sport out of the negative spiral/attention it had/has been getting (a couple of years ago especially). I guess there are probably optimists among the commentators that believe or hope (both work) that racing these days is clean and the current clean riders shouldn't be affected by bringing up what the previous generation(s) of riders were doing time and time again.
But indeed, the legal stuff highlighted above could probably be a bigger part for the commentators.
While the races are being watched by (hondreds of) thousands people, our comments here don't travel very broad, so we should be pretty safe
If you look into some older posts on here or other cycling commenting (news)sites (or if you just stick around some time), you'll see that the overall feeling is that there are probably much more clean riders around but cheating is probably still happening in the peloton... just on a much more delicate level (e.g. micro-dosing)... but nobody will be/is absolutely sure about if it is happening or the scale of it. We will just have to wait and see if in the coming years, things pop up about riders from today (like has happened in the past)... still it doesn't necessarily ruin the fun/excitement of the sport for us cycling fans, it's just that most of us understand that we do have to look at (some of) these results with a sense of realism/doubt on how clean the performances really are.
But indeed, the legal stuff highlighted above could probably be a bigger part for the commentators.
While the races are being watched by (hondreds of) thousands people, our comments here don't travel very broad, so we should be pretty safe
If you look into some older posts on here or other cycling commenting (news)sites (or if you just stick around some time), you'll see that the overall feeling is that there are probably much more clean riders around but cheating is probably still happening in the peloton... just on a much more delicate level (e.g. micro-dosing)... but nobody will be/is absolutely sure about if it is happening or the scale of it. We will just have to wait and see if in the coming years, things pop up about riders from today (like has happened in the past)... still it doesn't necessarily ruin the fun/excitement of the sport for us cycling fans, it's just that most of us understand that we do have to look at (some of) these results with a sense of realism/doubt on how clean the performances really are.