I'm not sure if I'm explaining myself poorly, or if we're maybe just speaking past each other, or I'm not understanding you.
You're saying that not lying about linux capability would be "cutting corners".
I'm saying that not lying (in this specific situation) would be the better opsec, and that anyone serious about opsec against government-level adversaries would not bother lying about such a mundane detail because it is all risk with no benefit to opsec. This concept was taught to me at a previous job where the adversaries were of the same magnitude as governments, and I'm confident that anyone seriously into the opsec/prviacy "scene" would concur.
Satoshi was, obviously, careful about opsec. Therefor I do not think they would lie about such a trivial and vague detail such as saying someone else is more linux capable than they are, because it would be a risk to lie about it compared to not lying.