Interesting reality you are living in regarding the past. Let's see
1) Judges salivating over the return of V/M -- I didn't read that anywhere, to be honest. If anything, the talk was more about how the sport had changed and that V/M likely couldn't adjust to the changes. They proved that they are still very much at the top of their game.
2) When V/M announced their return, D/W hadn't publicly announced their retirement. Even during the 2016/17 season there was still no word as to whether or not they were retiring. I remember reading an article that had them saying they could train for just the 2017/18 season and be as good as ever. I *think* they (D/W) may have announced that they are retired but this announcement came well after V/M said they were coming back, and well after the season had started.
3) It seems you don't like the rules of dance when they are applied to V/M -- Scott DID NOT fall. Yes, he touched the ice with hand but the definition of a fall includes a part of whether there is a change of balance. Here is some video for you to look at around the 1:48 mark
https://www.youtube.com/watch?v=cSQofAkprrs
If you were to take a look at their marks for the Circular Stepwork they received deductions for this "non-fall". They received a level three for the element (as called by the Technical Panel) and a GOE of .53 -- what more would you have as a deduction. Looking at the GOE of the judges, even they seemed confused as to whether or not there was a "fall" with -2 GOE from the judges of Spain, USA and Russa. All the other six judges gave them a positive GOE. In addition, if you look at the scores of the FD, you will note that V/M were second to P/C. Here is a link to the FD ID scores
http://www.isuresults.com/results/season1617/wc2017/wc2017_IceDance_FD_Scores.pdf
The most laughable score was 8.75 for V/M's SS by the US judge.
There is an ISU communication which lays out what is considered a fall and how to deal with such. Unfortunately I cannot find it at this time, but I know it has been part of my discussion with others regarding the FD.