[Feature Request] Rationale behind line truncation?

[karthink]

This is not a feature request (or a bug), just a question. In the single window mode (with dirvish-override-dired-mode), I have trouble parsing listings like this:

I can run toggle-truncate-lines on a hook afterwards to fix it, but I was wondering: what is the rationale for this in the first place?

[alexluigit]

See: #33 (comment)

BTW this would happen in dired too if I'm not mistaken (when the window is too narrow for the content).