I think you completely misunderstand the size difference. You think the X is the same width as the plus models? its not.
Its going to be just as narrow as the regular 6/7/8. Its taller, due to bezels being gone, but you will still have all the limitations of the 6/7/8, that is, the increased word wrapping, lack of tabs in safari landscape mode.
The below picture illustrates this, its not my pic, but its from xcode simulator, so you can see the difference in the amount of word wrapping you will experience between the X and the plus screen, due to the narrower width.