The touch interface on my phone and tablet compromises some of the usability of the input to gain a ton of flexibility and portability. Laptops compromise some comfort and size to make it feasible to stick a keyboard and pointer device into a thin, portable computer.
The various compromises are worth it in some situations and very out-of-place in others. I don't really see the point of a touch interface for general desktop/laptop use.
Lack of tactile feedback might be a bigger problem on laptops, but the reason it's a bigger problem is not self evident.
Agreed, there's nothing about it that makes it a bigger concern for a laptop than other devices. Touchscreens as inputs are suboptimal on other devices too. They're uncomfortable, slow, and imprecise.
I'm a huge fan of physical buttons. Sadly, it's impractical to have a phone with a screen large enough to be useful, thin enough to fit nicely in a pocket, and have it equipped with decent input.
This is a poor argument against touch interfaces on laptops/desktops. This argument applies 100% to every touch interface, and yet we use touch interfaces for phones, and tablets, and modern point-of-sale systems, and the decent car navigation systems, etc, etc.
There are compelling arguments against touchscreens on laptops and desktops, but this doesn't seem to be one.