I would've rebelled if Fitz had died. Torches and pitchforks type of stuff. Especially after he was so much a gentleman about the whole messed up situation with Will. Let me tell you, I was very much in camp Lance about the whole rivalry.
Also, yeah, how did "Ward" get out? Presumably what we are led to believe is that Mack, Coulson, Daisy, and Fitz bailed the second Coulson and Fitz came back from Tatooine, and sometime between the time they left the room and the time they got in their flying room (at which point Mack told Mei to blow the castle up) "Ward" got out of the portal (which, presumably, was left open since the castle was going to blow up anyway, so bother figuring out how to close it prematurely) and survived the explosions relatively unscathed somehow. All of this in about 10 seconds.