Not at all. People don't understand a lot of the nuances of gerrymandering, and this sort of reliance on it often backfires, especially as a decade goes on.

The redistricting happens at the beginning of the decade, following the Census. As the decade progresses, many areas change, with some areas booming, others waning, and their original influence on the redistricting changes. For instance, a Red rural area may start to lean Blue as new housing developments around a new industry pop up, and by the end of the decade, that reliable Red district is now very Purple, maybe even fully Blue.

This unusual mid-decade redistricting happened based on 6 year old data, a period of extreme political upheaval. To expect that the political make-up is exactly the same as it was back then is expecting a LOT. Many districts are an unknown factor.

Consider this:

They got rid of one solid Blue district, but diluted three solid Red districts. Those Red districts are probably 30% Blue now. Normally, that wouldn't be enough to win the district, but we have been seeing elections in Trump districts that are showing enormous drops in support, sometimes by 30 points or more. If this redistricting has given Dems a 30% boost in a year on which MAGAs are down 20-30%, those previously solid districts become prime for flips. And that's without even considering that the party make-up may already be far different than expected, because of time.

The thing to remember is that MAGAs always have a plan, but it's always a bad plan. They only see what's right in front of them, and they never look down the road, to the next several steps. In this case, they killed a Blue district, and that's good enough. They have no idea they've endangered three districts. Maybe they won't get all three, but if they flip even one, then their efforts will be a net negative, because now they have three MAGA Congressional reps who now have a significant number of hostile constituents they'll have to deal with, whether they like it or not. They'll screw this up, they always do.

Good point, it's a classic Cult of Personality, which means there is no #2, and a whole lot of people who think they should be #2, and not one of them will look interesting to Trumpers. Once he croaks, the knives will come out, and the backstabbing will be glorious. Wear a poncho.