The return of the 'x' would be a band-aid on a cut artery.
The issues are much larger than that, but the 'x' would help.
Since it was brought up, this new development strategy of Google, Apple and others, to try to design one interface for all platforms, desktop/laptop, tablets and handhelds is where most of the problems come from.
All previous attempts to support a single UI across multiple platforms have always failed. This one will too, but in the mean time, you all are making your users miserable.