In any given year, in dance and pairs, the big politcking IMO goes on in the creation of the yearly additions to the rules. The last 2 years, these rule updates have been 30 pages each. They are, of course, voted on. However the head of the rules committee is Gorshkov. There is nothing in those rules changes that the Russian fed is not OK with, IMO. While number 2 and number 3 Russian skaters have often been undergraded (as have the number 2 & 3 skaters of other feds), I don't recall any Russia number 1 team who suffered from severe undergrading.
The success of D&W is due to the fact that the current rules favor them. Part of that is due to the fact that rules and penalties emphasizing balletic character, toe point and extension, would not favor DomShabs or K&N either. K&N have too big a size mismatch, and Max's knee has impaired their ability to do these things. So D&W's main weakness is not particularly penalized these days.
D&W have wonderful spins, both for speed, difficulty of entry, and ability to keep timing and express character during them, rather than just doing the spins. B&A's are good, but not special.
On the step sequences, speed rules, and deep edges. D&W have both. B&A are slower.
On the lifts, everybody in the top 10 these days gets level 4, so actually greater difficulty in lifts is only rewarded via GOE. This helps B&A, but they have decided to do acrobatic lifts like V&M and D&W and they don't do them very smoothly yet. They may well by Olympics, but they haven't so far this year. Both V&M and D&W have complex, smooth lifts.
And so D&W have had the tech mark over B&A for some time now.
Sooner or later, the chickens come home to roost, and this year they did at US Nationals, particularly as D&W really brought a good Golden Waltz CD, comparable to B&A's, and although one could argue a couple tenth's one way or the other, I would agree with the judges and give the CD to D&W. That was supposed to be B&A's strength, so it was all downhill for B&A from there.
By the way, Dick Button gave the OD to B&A over D&W (opposite of the judges), so I don't quite see why you are picking him out as a B&A hater?