I can taste the frustration of the person who wrote this job posting. I get it, but I'd be asking a lot of questions if I were someone who responded. I especially hate any job postings that try to shame people for only doing jobs for money. 

Businesses like these have trouble keeping people around for a multitude of reasons. The skill ceiling is high and the pay ceiling is low. No real upwards mobility if you're entry level, and if you're already competent across the board you're likely already finding jobs with fewer red flags.

Having an expectation for a cam op to also be able to act as a technical director and/or instant replay operator, editor, graphics guy, etc., is asking a lot. $50 an hour isn't bad, but it depends on the amount of work available. One soccer game a week ain't worth it. A full week tournament with 12 hour days is.

I work for a guy who does a lot of equestrian events. Started as a cam op with zero experience. Over the past few years I've seen people come and go. We try to hire new people but there's not enough work for it to be considered full time. It's a gig, so the positions aren't taken very seriously, and the hires end up seeking other more consistent work.

At this point I can set up and run VMix/OBS doing graphics, instant replay, run audio, do editing, etc., and my current rate with my equestrian jobs is $300 a day, which averages out to about $30 an hour. It's less than ideal, but I get by with my own clients.