how so? Is it a class system that only Raytheon employees can work on cruise missiles, not the average citizen?

Cruise missiles are not general purpose tools, it's obviously not even remotely similar. Virtually everybody reading this could use Mythos immediately to do real work, collectively in virtually every part of the economy.

It's pretty problematic to not make it more widely available at least to US businesses, and there is not even a vetting process to get approved quickly and easily. If this is the new norm, the intended or unintended consequences of this type of gatekeeping will be an unprecedented consolidation of power amongst the largest corporations. Even more than we have seen over the last 20 years.