I've been working on software design for a long time and I'm pretty sure the problem with the Google redesign is not merely that users are unfamiliar with it. They've made classic design errors.
- initial bitching
- gradual acceptance
- the new is much better than the old
This usually over a period of 3 months or so. And that's for improvements and mistakes alike. There seems to be an automatic component to all this that is 'conservative', as in 'opposed to any change'.Time will tell on this one, if google reverts to the old lay-out then the conclusion is that they also thought that it was better before. But it is very well possible that this 'worse' lay-out is actually better for google, even if it is worse for the users, for instance because it increases their bottom line.
A design error is not always a business error.