So instead of us "knowing it is valid", we don't. We need to put in extra effort, because someone felt like doing only half the work and dumping it on the community to fix.

We don't know the current system can work well enough at this scale, because that's un-knowable. We know it can find some of the problems. We don't know it can find all of them.

We do know it takes more effort - that's knowable. Increased data takes increased processing.

Whether the community has the required effort available, seems unlikely, considering the expertise required to be able to assess these things hasn't changed. Only the ability to generate them has increased.