I'd agree that once a week is almost certainly too much - especially right now. My son's situation was different. He had lost the spring high school baseball season that prospective coaches were ready to come watch some and part of it was simply trying to show prospective coaches that he wasn't sitting around playing video games and the like. I listened to a lot of podcasts and videos where coaches specifically spoke about how kids were spending their newfound extra down time. Both because of losing spring baseball and because most were remote learning (which largely a joke). Many were saying it'd separate the good from the great.
Part of the process involves staying relevant and visible to coaches. Especially for kids like mine who didn't have schools in line dying to recruit him. He had solid interest, but giving coaches too much space allows others kids to swoop in and become their new bright shiny object and steal their attention. My kid is a grinder who is best evaluated over time. In other words, he doesn't have the sizzle of the monster bat which is college coach priority #1 if you're not a pitcher. He has the high AVG and OBP, steals lots of bases, great athleticism, makes web gem-type plays, high baseball IQ, informal leader, etc. Translated, that means he's "a dime a dozen." Not important in the 2020 landscape sort of ways. From my perspective, pitching owns about 70% of the overall importance in recruiting, huge bats account for about 25% and everything else (my son) gets about 5%. So it became all about him fighting to stand out and sending new/fresh videos every week this spring was one avenue he tried. Some coaches appreciated it while others blew it off. We watched the weekly views the videos were getting and it was up and down. We tried to learn from week to week and adjust. If anyone has an interest in seeing what he sent out, send me private message.
My cousin dates a mid-major paid D1 assistant coach. A couple years ago, I asked him for the "magic bullet." Remember wanting that and thinking one might actually exist? I was SO disappointed when he told me the "secret." He said you have to "be seen." Only now can I look back and understand what he meant and why I was incapable of understanding it at the time. He was absolutely right of course. But being seen looks different for each and every player. You can perfectly copy another kid's approach and hear crickets chirping. My advice for anyone without a big pitching arm or a big bat, is to do things that no one else is doing. In addition to doing all the things that everyone else is doing.