Just compile for your specific hardware sort of like what Gentoo does. I don't want you continuously running a model - sort of defeats the purpose of performance gains.
It's not clear to me from the article if the comparison is with locally compiled binaries, that would be the fair comparison.
I would expect this to be better all rounder in theory, but it would be interesting to see what the difference is from a locally compiled baseline, and therefore if the complexity, obscurity and cost is worth it (again probably application and hardware dependant question).