Think you’ll see a preference for either and there’ll be no pleasing all.
For my preference, don’t think video tutorials should be the main go-to but supplemental only. There are too many situations where one cannot even consume a video tutorial, but a written tutorial is useful in any situation. Rarely can I get through a video during my day job. Family, children, etc., make for watching video tutorials difficult at home. So, if I am to view a tutorial it’s often late at night, and by then my interest is somewhat reduced.
A written tutorial, now there’s something I can consume anytime even if just during a 10 minute break. One can go at whatever pace is comfortable for them. You can search it, put it down and come back later without reloading and finding your place. Reread text and make notes to look into related themes. You can see the code without worry of video resolution or streaming quality…you can translate it, copy and paste it, load it up on a tablet and carry it around offline, tag pages into note taking systems such as evernote, there is no speech or accent issues to deal with, etc., etc.
A wall-o-text could be written about this, yet clearly there are many who would have as many arguments for video tutorials. Frankly, likely due to my age and life situation, the video tutorial preference baffles me. Perhaps it’s time for me to buy a cane and spend my days shaking it at youngsters and telling them to get off my lawn.