You hit the nail on the head. If you are in a job hunting drought outreach like this is like a mirage. It looks so good. It can be really emotionally draining as you realize that it's not targeted outreach but automated scraping.

It's important to not take it personally, but when I was doing really, really badly things like this were very upsetting to me. I'm doing a lot better, I can see why some people get riled up about it. I'm thankful I'm in a place where I don't WANT to rage about it anymore... but clearly there's still something because I'm on here writing huge paragraphs.

YMMV. Job hunting sucks, I don't think there's an easy answer or solution on either side of this fence.