It'd be nice to see, but knowing Rangers and Monster Hunters won't receive an appreciable bonus to the feature makes me reluctant to show support for it.
The module is also ultimately very small and finding anything that's hidden, whether it's a corpse or an enemy player's base, is just too easy. It is tedious but easy. This will only slightly curb the tedium in a limited number of circumstances, and make the game world that much more predictable and gamified, which is something it suffers from already.
It would only be a good feature if several other problems are addressed simultaneously, since it'll bring up its own issues. Implementing it now won't do any justice to MPCs for whom respawning is their only defence, which are rare already.
I'm posting under the impression this is almost entirely for PvP. We can already see what kinds of creatures are inside variable caves before we enter them because of hidden detection checks. So again, it'd be nice to see that for a few more things, but somehow I doubt you're going to see that with the current setup, but it would be useful in a server environment where emergent gameplay was the norm, not the exception.