Not especially. It's relevant (there's a reason op_return data is contiguous - because it's intentionally file storage) but not the be-all-and-end-all (hence BIP110 targeting OP_IF in taproot which is being used for non-contiguous file storage).

The contiguity speaks to the undeniable fact of it being very obviously for a specific purpose rather than a hack job in taproot spends that betray the fact that it was not intended use.