They didn't just drop a reactor in a pool; they also eliminated a bunch of pumps and other failure-prone components from the system.

I would prefer to see inherently safe designs like LFTR gain traction, but NuScale has one of the few designs likely to be built in the near term, where you could SCRAM and take a vacation without causing a meltdown. That is a major advancement in safety; let's not let perfect be the enemy of good.