IMHO the distinction between URL and URI is similar to the debate on SI prefixes for bytes, or whether we should insist on calling Linux GNU/Linux; i.e., most people just don't care enough so these things will never gain currency.
> Standardize on the term URL. URI and IRI are just confusing. In practice a single algorithm is used for both so keeping them distinct is not helping anyone. URL also easily wins the search result popularity contest.