It might have something to do with the demographics. Text editor users are developers, power users, or at the very least, very tech savvy (there is also the other extreme of the spectrum, people who know nothing better, but you get my point). With that demographics, we (at least I know I do) tend to be more picky.

The majority of people are content with coffee-making-loading-time for their OS, and the slug that is called Microsoft Word or Adobe Reader.