While Coda's 2010 blog post is clearly the most commonly linked-to bcrypt reference – the post itself includes a many links including one to an article by Derek Slager (quoting tptacek) from 2007, links t both Java and Perl implementations from 2006, and a link to a Usenix paper from 1999.
If Adobe didn't switch to intentionally-slow hashes with proper salting until "last year", that puts them over 20 years behind "best practice" (as well as 2 or 3 years behind fully deserving of online mockery, laughable uninformed-newbie levels of security engineering).