But that wasn't the original comment you were responding to from
@Tavi - you're making this about the the lower ranked skater being selected for the Team Event over a higher ranked skater when it's not - it's about which individual skaters/teams would be better choices in one segment over another regardless of their preference.
To use Ice Dance as an example -
During this quad we have had seasons where either Chock/Bates or Hubbell/Donohue were routinely outscoring the other in one segment and trading placements. C/B better in the RD, H/D better in the FD, and they were beating other the other top teams in the world in one segment but not the other. Why, in a scenario where one of those teams is clearly besting the likes of SinKats, PapCiz, GilPoi and GuiFab in the RD while the other is clearly besting those same teams in the FD, would you not choose to use the stronger of the two teams in their stronger segment? That's a clear situation where the USFS says "yeah, no, #1 Team, we know you said you want to do both but, nah, #2 Team is stronger than you in one half of the competition and the scores have borne this out all fall, so #2 Team is doing the segment they're stronger in and you only get to do one segment." Theoretically, that's probably what should have happened in 2018 with the Shibs and H/D, though it probably wouldn't have made a difference between bronze and silver. This time, it COULD mean the difference between silver and gold, especially if one of those dance teams is consistently winning the RD or the FD and SinKats is finishing 3rd (or even 4th) in either segment (and this becomes even more critical if say, Italy or France makes the Team Free along with Canada).
A similar scenario might apply to the Men, if say, Nathan says "I want to do the SP" and the USFS determines that Vincent's SP scores put him in good contention to finish first but his FS scores are a little lower and could see him finishing in 2nd or 3rd while Nathan's FS scores are going to be hard to beat. Maybe the USFS goes to Nathan and says "we need you in the Team FS rather than the SP" and asks him to reconsider his preference. Nathan is the only US skater who I think will have his personal preference for the Team event honored, regardless of how it impacts the USA's chances at team gold and that is for two reasons - 1) he is the 3-time defending World Champ in his event and the strongest individual event medal contender, and 2) his individual event is the first one after the Team event.
The rest of the disciplines, if the USFS is serious about contending for gold, might not have the same leeway. At minimum, I expect that, should a scenario where C/B is clearly better in one segment of the dance competition and H/D is clearly better in the other, they'll have conversations pre-Nats with both teams and ask them to consider stating a preference to do only the stronger segment and let the other team compete in their stronger segment. But they've given themselves the right to override whatever the skaters put on their preference forms - and I don't think that was in the 2018 Olympic selection document, so they're clearly starting to take the team event more seriously.