I used to sell video equipment in the late 70’s to early80’s.
I remember that RCA videodisc (needle in groove video). They pumped a lot of money in that. I simply refused to sell them because they were garbage. One lady bought one anyway and it came back a few days later.
i.e. you are correct.
However, he said his parents loved it, the only other people besides Edwin Land, apparently. Well, not quite. Some artists worked with the technology.
I saw a news report on it at the time, and iirc, besides the fairly low ASA, special player for what basically was Super8, the cartridge held just over two minutes of film.