Tor is indeed no longer the illegal safe haven, but people still don't seem to realize that. Same basically goes up for people fully putting all their trust into the "anonymous" nature of Bitcoin to hide their activities. Especially when it comes to dealers just having made their entrance in the Bitcoin world. They sell their stuff for Bitcoin through whatever deep web market, and then cash it out via the exchange they verified themselves at. How stupid can someone be... Other than that, Tor integration will not do anything for OpenBazaar when it comes to gaining popularity among the regular people.
For tjose people who are new to the darknet, there are plenty of tutorials in https://www.deepdotweb.com on how to ensure your privacy online and other basic stuff like how to use PGP. Other tutorials include how to properly buy drugs from the darknet without compromising your privacy.
There's also an article about a major upgrade on Tor to be released this year. https://www.deepdotweb.com/2017/02/13/major-tor-darknet-major-privacy-update-govt-investigations-struggle/