Yes that's true indeed, I was talking in general. Maybe having a more opened device would help getting security fixes faster? One of the main reason this exploit was heavily obfuscated was to avoid Apple to patch it.
I would doubt that. More likely, it was to keep the script kiddies away. (There’s currently drama going on in the community right now about stolen code…not that this us anything new :/)
Intentionally jailbreaking your phone isn't untethered or RCE. But this particular jailbreak could be combined with an RCE in any application running on the device in order to compromise the system.
