Or it might be because LSM launches aren't wasting tonnes of energy in comparison and they can create just as much a good launch experience?
Like, iSpeed's launch is pretty damn fab, as are pretty much most LSM/LIM launches... Let alone that the acceleration is bound to be completely indifferent comparatively (110 in 5 secs versus 120 in 4 secs)... Which is about 10m/s2 against 13m/s2, so that kinda also disproves that the system can't accelerate the train to similar levels...
There's also the trend of hydraulic systems being shunned recently, the last one was Formula Rossa and that was 5 years ago now...
Comparing it to the US equivalents is amusing too, given most European coasters are shorter and slower yet often are highly rated than their counterparts over the Atlantic...
Saying things like LSM is poor launch technology is just daft though...