I have no idea if that's true of tech companies. Regardless, you are confusing the part-- tech companies-- with the whole-- the set of all companies (of which orchestras are included).

I was responding to a non-expert's cost-benefit analysis that confused the part-- a specific type of diversity policy-- with the whole-- the set of possible diversity policies. She generalized a set of trade-offs and claimed unasked/unanswered questions around the field based off that part. I referred to a well-known historical diversity policy for which her proposed trade-off does not exist.

That ought to arouse skepticism that a non-expert who isn't genre-literate in the field is able to find the best solution to the problem.