It's just a different medium. It's not meant to be better or worse than any other medium. It's definitely not a cheap medium to mess around with, but it sure is fun. There's no sense in discouraging people from shooting a certain format.
I've shot probably 30 rolls of Super 8, never had the lab goof up... You can also over expose by like 4 stops and get usable images. You aren't shooting on reversal these days... You might want to read up on the new stocks and 5k scans they have available.
Horrible stuff to watch? Sheesh. It has a timeless look. It is a great medium to use in a piece help give a different look. It has worked well in surf films/skateboard films over the years. You also get a really nice parfocal zoom and very high dynamic range. It can easily do slow motion, frame by frame, in camera film burns, etc. It's really fun stuff. You get no Jello thanks to frame shutter.
Really though you are comparing two different animals. Super 8 looks awesome in this type of setting. Handheld, lots of zooms, etc. Most of all, it is compact and fun to shoot with.
There's no sense discouraging people. Super 8 and 16mm have been used by skateboarders and snowboarders for years and years for b-roll and other purposes. Just shoot smart and you'll end up with tons of useable stuff.
I respect that you have a ton of experience shooting film, a lot of us from a younger generation didn't have that experience. I recently bought the sync sound motor for a bolex and it has been a lot of fun. It's not cost effective, but it has been a cool experience and I love the images produced.
Every other production uses a C300 with a 50mm lens. Every interview is lit with a couple LED lights. It's nice to see a medium that looks a little different. Some 5D footage with film convert slapped on it is not the "look."