Hey hoo.
Its funny how often the same questions recur, to different minds. In this case, ESD vs crescentus.
I reached the same conclusion that crescentus, by itself, is inferior to ESD (especially w Sneakdoor). Primarily this is a nature of leverage, deck slots, and tempo.
Many of the must successful cards allow multiple uses. Security testing is probably good for 18 credits in the course of a game, on an event you were probably doing anyway - and on top of that, leverages with desperado, doppleganger, HQI, feint etc.
One issue with crescentus is that as a single shot program - its a one time use, and leverages with a very limited cross section of programs.
In times where the cost to break ice is high, the value of ESD/Crescentus increases. However, the meta seems to be moving completely the other way at the moment, with the introduction of the new disposable breakers (lady, david, grapple), the introduction of the hyper efficient stealth breakers, and the centrals only breakers.
Crescentus can be made more palatable by including autoscriptor/savoir fair/mass install.
However, in that instance, you are trading deck slots for tempo/resources. And while that can be done very very well (aka, what is shaper other than an excersize in having the best bullet for the problem?) the bottom line is that crescdentus doesnt’ have enough payoff, especially considering that the meta imo is also moving toward smaller ice. Just how much value does crescentus really have when you’re derezing an enigma?