Basically, though Mill also is belt-based (think stack with size-limit) not registers and compilers nowadays are a bit better at VLIW than when IA-64 was introduced. They also have a shitload of security addons that would mitigate most modern exploits and other nice-to-haves.

Nah, the Mill is sufficiently different than a standard VLIW. I'm still on the fence about it, but it's noticeably different from the Itanic.