For what it is worth:
In our frag tank, a flame RBTE moved on to the base of a 2" X 4" M. palawanensis frag. The RBTE opens up under the palawanensis, curls up around the outside & over the edge to get light (see pic). It has been about a month and the edge of the Monti, where the RBTE curls over it seems not to be unaffected. I though of peeling off the RBTE but figured I would kill one the other or both, so I left it on.
Sorry for crappy phone pic!