This sounds suspiciously like the recommendation that the only thing holding the Macintosh back was its inability to run Apple II programs.
No, it's like the only thing holding back the Apple II is the inability to run Macintosh programs. The thing that does more still does more.
Tablets are great for leisure, but horrible for work. Touch screens are better for some activities, but are ridiculous for typing, and don't give the fine control of a mouse.
These moronic pundits need to stop pretending that every new thing is going to replace every old thing. Sometimes the new thing is really the old thing, and sometimes they just keep existing, side by side.