[darklajid]

Why though? I understood the GP as 'use location for sane defaults' with an implied 'if there is nothing else to use'.

A website shouldn't ignore Accept-Language. But if I set up something for the first time AND it already knows something about my region/location: Sure, go ahead and use that to suggest sane defaults.

Note that the GP seems to agree that you should be able to change the settings yourself.

So, while I'm seriously pissed by the original language redirection/detection issue (German, everything is set to en, travelling quite a bit and spent a year in Israel: Thanks, Google, for a site in Hebrew), your 'NOT EVER' seems off. Whether I travel or sit at home, if I open - using the GP's example - GMaps for the first time on a brand new phone: Why shouldn't it default to the local units? I'd consider it a bug if it wouldn't do that.