Sorry but I gotta waive the bs flag on all this nonsense. You updated your iOS and stayed jb and everything else you posted is just not possible. Period.
I had the exact same experience, so I can tell you for sure he's not full of BS. I did the update, just to try. The device was NOT jailbroken after the update, but evasi0n said it was jailbroken and jailbreaking was not recommended. He's not full of BS, he's absolutely correct. The issue seems to be in the way evasi0n reports though... more an inaccuracy with the latest version. But I can definitely vouch for the comments he made as accurate to my experience as well.
Needless to say with such uncertainty I just did a restore and started from scratch. All of the "it's such a hassle to restore and re jailbreak" on here crack me up... it's not a big deal. Especially given that 7.0.6 is likely going to be the last jail breakable version we have for the foreseeable future (READ: I didn't say future jailbreak is impossible, I just said it'll likely be a while, calm yourself!).