Slip of the tongue if done once, a misunderstanding if repeated over and over again.
While the 55/3.5 is a good lens and excels for close-ups, it also has drawbacks used as a generalist optic. The bokeh is on the harsh side partly due to the 6-bladed iris, partly due to the optical compromises built-in. Chromatic aberrations can be visible too. Whether the lower image contrast is a drawback or not, is up to the end user. I never liked the 55 for general photography, but opinions differ.
Not mentioned in the video is the favourable IR capability of the 55/3.5.