As I explain at the beginning of my post, there's plenty of downtime in Criterion dungeons and in Savage fights (e. g. P2S, P3S, P5S, P8S, P9S, P12S-1). Whether we want to care about Criterion balance or if there's enough or not downtime in Savage are entirely different questions.
The point here is that PCT is a strong or dominating job in almost all forms of content. There's no duty in which PCT is weak. Whether you look at percentiles in Extreme, Savage or Ultimate fights doesn't matter. The job is very good all the time and it has nothing to do with how high you can get with crit luck or if the 100 and 99 percentiles are misunderstood or analyzed poorly.