Can you regex or wildcard props Sourcetype stanzas?

Still haven't seen an official answer to this. Source and host can use regex patterns, but sourcetypes cannot. Even a splunk blog recommends a way that is well... not recommended: http://blogs.splunk.com/2014/07/31/quick-tip-wildcard-sourcetypes-in-props-conf/ I want to do what the acme: example he is doing in that post, but that doesn't seem to be supported.