Given that nobody, and I mean nobody [including Scott Aaronson[0]] understands Grover's algorithm[1], one can only be certain that value was only delivered to the stakeholders.

The whole industry exists to prove Feynman, uh, consistent[2]. Didn't he say nobody understands quantum, but didn't he also claim that quantum computing can be useful?

[0]https://doi.org/10.1137/1.9781611976014.5

Although Scott is the most honest of them all

[1]3b1b was in good company, not sure about now?

https://youtu.be/Dlsa9EBKDGI

[2]he demonstrated that not fooling oneself was of the utmost importance by continuing to provide the prime example of fooling oneself?

How does the paper from [0] show that Aaronson doesn't understand Grover's algorithm? What level of "understanding" are you looking for here?