Just to jump back on the launch point, because I'm a pedant like that.
Wrong.
The difference is that for the Hulk, B&M essentially delivered the entire ride to Universal minus the launch and said "there you go - you do the rest". With Thunderbird, B&M delivered the entire package (yes I'm sure it was probably more complicated than that, but if things had gone sideways you can bet that's how B&M's contract was written
).
Sure, they didn't manufacture the launch components themselves, but they also don't manufacture the ride sensors for any of their rides either - that's not really what people mean when they say it was all built by B&M.
Just 'cos I hear that argument used a lot - "B&M don't
actually make the fins" - and it's annoying.
I know you know this, but just want to be clear.