[gumby]

Sounds like a data point in favor of the "the standards are inadequate and Apple does some extra work" hypothesis.

Let's hope Apple can feed some of this back into the standards organization.

Apple's efforts with standards committees has historically been so-so -- neither bad nor good, seemingly mostly reflecting the interests of technical managers unless there was a specific strategic need (e.g. USB committee, Qi), and never with a coherent commitment.