FWIW not absolving Intamin of making issue laden rides, but rather the duration, the frequency, and the typical issue (what’s causing the shutdown) is mostly a reflection on the park or ownership change IMO.
You can point to the fact that those three are unique, but by now the launch system ok KK, TTD, and Xcel are the same as SR and a few others, and SR and KK don’t see the same amoumt of downtime as the CR counterparts. Same thing for the launch system on Volcano (inverted is unique but they even have a few non full loop versions), it’s not unique so it can be fixed quickly.
So at some point it is just CF and speed. Makes me wonder if the fixes that need to happen are something that they send CF engineers to work on rather than the individual park maintenance.