I completely understand what you mean.
The problem: since ModularGrid is a Wiki there is no "authority" to validate all the specs, everyone can edit anything, and so you can quite be sure that a lot of specs are simply wrong or entered by different standards. We have this issues on the power requirements too and I doubt that this will ever change.
The quantity of modules in Euro is just overwhelming.

Overall I think the system works nonetheless by relying on some sort of swarm intelligence.
In doubt you can always double check by looking at John's Eurorack Database.