Mike Perry:
We could do this same thing to promote uncensored Tor clients to various types of pluggable transports.
I asked this some time ago: "[tor-talk] anonymity: bridge users vs. entry guard users" [1]
If everyone only uses pluggable transports... That's quite an interesting idea. You wouldn't need to ask the question if ones prefers to connect to the public Tor network or or to use pluggable transports anymore.
I think everyone using bridges would make uncensored users more dependent on bridge authorities and give more power to bridge authorities, thus make Tor less safe for uncensored users. More centralization, once you decide to put down the bridge authority, there is more usable Tor network.
If using pluggable transports were the default and the public Tor network an advanced option, it would still make Tor less anonymous for uncensored users, because more people who actually don't depend on pluggable transports, are using them, and fewer are using the good old entry guard mechanism.
So this is also a network design / political decision.
[1] https://lists.torproject.org/pipermail/tor-talk/2012-May/024378.html