Just about every comment from people who hate touchscreen laptops (as opposed to those who merely say "eh, not for me") confuses me. It seems that the haters think you have to use the touchscreen for everything... lots of comments about what touch is bad for, lots indicating that a mouse and keyboard are better for lots of things.
And all I can think is exactly. The whole point of having a touchscreen laptop as opposed to a tablet is to use traditional inputs for things they're good for (writing, precision work, etc.) and touch for things touch is good for (reading, certain game interactions, composing drafts of some kinds of visual media, etc.).
I had a touchscreen laptop for work for a while. It was wonderful. About 80% of the time, it was a traditional laptop. When I was drafting a presentation (mostly images, very little text), touch was a godsend. When I was reviewing large reports, "tablet mode" with touch was much better than reading on a normal laptop configuration.
They may not be for everyone, but I submit that most people who hate them have never used one for more than a few minutes.