Lol, the Alphabet Soup are just going to watch the Prime Asset waltz off into a (proven) hostile galaxy in a parallel universe, and just shrug their shoulders? 🤣 No, I really really really think that "The President and everyone" are absolutely not okay with the golden goose waltzing into a very risky situation. They just can't stop her.
I can't recall if it was bonus content or not at the time in happened, but the observation was accurate enough.
You don't
control somebody like the Prime Asset. You act as friendly as possible and pray they cooperate.
Telling her 'no' is a just a great way to make sure she applies the same kind of frightening intellect that builds superconductors in a weekend, to dodging your oversight. The
best case scenario is that they ignore you and do what they want anyway, the worst is they decide you're no fun and stop cooperating with you. She built an interdimensional galactic range transporter out of shit in her basement, then told an alien how to build same out of random shit from a derelict, in a time frame short enough to rescue said alien from said derelict. The communication breakthrough to allow for that is impressive never mind the actual tech.
Taylor's effective budget is 'all of it' because the US government knows damn well her first invention alone is worth all the money ever, never mind the rest of the stuff she keeps coming up with.
For the same reason you think the Alphabet Soup wouldn't let her wander away, (how awesome she is) they also don't dare stop her. You can't risk making her an enemy. Or even indifferent. The only thing worse than her pulling a Stark and deciding to keep all her toys would be shopping around for another country that would let her do what she wanted in exchange for those toys. Which would be ALL OF THEM.
So yea, there's weapons and shields on the ship, they'll send an escort, but a happy super genius is one that invents more stuff, so if she says she wants to go? Go it is.
Plus she doesn't actually work for any of them, so authority is questionable. Sure you could scream national security to justify just about anything, but again, unhappy super genius bad.