The worry is that it simultaneously may be overinflating the concept beyond what it is, while also ignoring other components of the system that may be involved and deserve their own emphasis.
Well, I've always maintained that it's a complex system, but fascia is certainly part of it and is noted as such in documents going back a couple of thousand years... except not in English, of course. Although different schools of Yiquan use different terminology (backbitingest martial art I've ever seen, in terms of factions
), it's in there, too. Personally, I think that while the interractions are complex in terms of what we're used to, the description of what's involved can be kept fairly basic. And I think we've more or less kept it basic by just leaving it at "fascia-related" at the moment.