[Hikikomori]

The way you write it makes it seems like you're blaming the tool for misleading results when that's the nature of traceroute itself.

MPLS don't have to hide routers though, up to the operator, even if they do it will give you idea of where things went wrong and you can contact the correct people. Load balancing links is either lacp or ecmp, first case doesn't really matter and in the second you'll just see multiple responses on a hop. Neither really had any impact on how useful traceroute is and doesn't really mislead.