uri templates: NFKC or NFC

The URI Templates draft currently requires use of the NFKC for
normalization of Unicode strings.  I've never understood why
that is, considering that IRI does no require it and
browsers appear to use NFC (if anything).  Also, it should only
apply to the expansions -- the literal parts don't need to be
normalized.

Should I change it to NFC?

....Roy