The show is pretty bad. But different disciplines can and and do work together. Luis and Walter Alverez were a physicist and geologist whose research in iridium in the K-Pg (K-T) boundary set the paleontology world on end with their asteroid apocalypse theory. Though not all buy into that theory either.
Absolutely. I think greater cross-fertilization between disciplines is very necessary. For many years each one had tunnel vision and the result was something like the tale of blind men describing an elephant from only the part he could feel: the tail, the trunk, the leg etc. We're seeing more cross-discipline communication these days and I think it's great.
My comment about Wolter was simply that a geologist has serious limitations in explaining the types of things he takes on.