I realize we are firmly in conspiracy theory territory here, but perhaps the suggestion that users switch to Bitlocker is intended to be so patently absurd as to be a signal that the developers are under duress?
My very first thought upon hearing this news was that just maybe the trucrypt devs are secretly cheering for others to come and replace the hole they fill in this world. Maybe this is the best possible thing they could do to inspire the next generation of truecrypt. They've laid a good foundation but they know they can't win the war for free information security on their own. So what better good could they do than to inspire the mother of invention; necessity.
The Bitlocker thing seems strange until you realize that it probably really IS the best alternative for most users. The users who are paranoid enough to not trust Bitlocker can probably look out for their own security, so it makes sense to give instructions for the rest.
None of the explanations people have came up with regarding intelligence agencies and conspiracies really hold water. If the devs were compromised, I doubt they would be given the freedom to post something like they did today. If they were under some kind of NSL or gag order, this would almost certainly violate it.
It seems odd to me that security specialists would recommend a flawed tool to 'the masses'. It just doesn't fit with what I usually read from people in this line of work.
[1] - Whether it's flawed or not depends on your needs. Not everyone cares about defending their data against an attacker with the resources of a nation-state - many just want their laptop's hard drives to be effectively inaccessible if the device is stolen or lost.
While this might be reading a tad much into it, the language of the announcement, specifically the "...as it may contain unfixed security issues" bit, sounds like what somebody who just came out on the losing end of a heated debate about whether some bug-feature should or should not be considered the former would say. Knowing the vitriol and determination with which software developer arguments are often carried out, this would explain the observed combination of remarkable dedication and haphazard execution.