Typical stubborn users who can't stomach change, even if it's for the better. Amusing, but no different from those who complain about Facebook changing their layout.
I will usually just skim headers to get the gist of a policy if I'm dealing with a large entity. Only takes a minute and if there's anything terribly jarring I'll typically catch it.
The whole "everybody should adopt UTC" business makes no sense to me. If a business needs to use UTC because of time zones or whatnot, they already are. It'd be weird having the day of the week change in the middle of the day in Japan, too.
As noted in the article the friction from religious groups wanting to hold the sabbath would be too great, in my estimation. I would love a logical organized calendar like the one you propose though!