Physiques

[Aiwendil]

means we can guess that Tuor was shorter than the average man of Tolkien's day, yet still taller than the Noldoli back when Gondolin existed?

That seems quite plainly to be the meaning, if you ask me - at least, that's how I've always interpreted it. But there is plenty of evidence that this early conception of short Men and short Elves, who diverged in height into taller Men and even shorter Elves, was abandoned in the post-LT period.