I like the sound of ribbons a lot, and plan to switch my current home speakers over from the Peerless HDS to the AC G2. The crossover is complete, just need to modify the cabinets.
Having said that, tests I've seen show that the MDT33 has extremely low non-linear odd-order distortion , lower than any of the ribbons out there that I have seen tests on. Since non-linear odd order distortion can be audible, there may be a different "flavor" to the tweeter. Of course, directivity is very different too, and this changes how we perceive it as well.
However, voicing does certainly have a huge impact on all of this, but I tried very hard to balance the G2 to match the level as closely as possible to what it was with the MDT33.
Finally, one more observation: I have found that a dome with a strong low distortion motor seems to carry more dynamic "punch" at the lower end of its operating range compared to ribbons I have used, which may aid in the way it crosses over to a mibass. Ribbons, on the other hand, sound much more open and realistic at the top of their range. This probably correlates to better acoustic impedance matching with the air-load at the lower range for a dome vs. much lighter moving mass for the ribbon at the top. Still, there are many factors involved.
I'm not sure what you mean by a dome being more "honest" than a ribbon tweeter. I'm not aware of any information that a ribbon obscures and a dome reveals. It sounds more like a voicing issue than a technology issue.