It can be fascinating, but it can also be detrimental to getting the message across in inexperienced hands. For me the most aggravating result of convergence is the unnecessarily shallow DOF in motion footage shot by many former still shooters. Paper-thin DOF works well with stills when we have all the time we want to take in an image, but the image (and message) is lost when similar DOF is applied in a fleeting motion shot. It does have it's place as a special effect used sparingly, of course.
Another is that many still photographers are very poor at telling a story with moving
visuals. Just the technique for different ways to pan, zoom, use DOF (see above), grade, etc. are not picked up overnight - and using those successfully to convey a feeling takes even more trial and error.
While I'm strongly in the camp that feels we are right at the beginning of a literal* explosion of democratization and creativity in motion, there will be even more utter garbage than in the past. Fortunately there are diamonds
in the rough.
* used in the metaphorical sense