Actually, Keith is correct, to a point. Inexperience did play a role as they had no idea what would happen. Claudia even expressed her doubts about folding so close to to the ground. Global opted to go for it anyways. In "Global's Report", Global states that the SA's old software caused ship-wide malfunctions. And since the fold drive went missing afterwards, the answer is unclear.
As we saw later, the energy field generated by folding is practically skin tight. Now if Macross's fold drive is suppose to act like that, why did it create a huge field where as in M7, the fleet folds from Rax and doesn't bring the lake they were in or when folding to Varuata in episode 48, why did the fighters have to land on M7, then fold, then launch again? Or better yet, why do fighters/vessels have individual fold boosters/drives? Why do they not have 1 fold drive generate the field to encompass all vessels in the group?
The unfortunate answer is, we don't have the original Macross fold drive to run another test on. Keith may not be right, but he's not entirely wrong. But this is something for another thread.