Well, in this particular case I agree. Its unlikley that you will make your own ARM SOC or blobs because the Snapdragon blobs are unavalible to you. But one can see the secrets as an anti-feature and choose an alternative supplier that is less secret. While Google / Asus didnt the end users might.
Ah I see you're saying that keeping secrets may motivate clients to pick someone other than you, and potentially increase competitiveness if the market presence of 'secret keepers' is minimal.
I think it's pretty tricky to consider that a real 'effect', as if the alternative companies kept secrets then it would be just as bad.