I mean, I don’t think anyone is telling you that you MUST put a dot on a 43x/48. But given the advantages of the dot and some people’s eyesight being the hot garbage that it is, it makes total sense to at least have the option. The 507K is pretty tiny to boot. It’s something that I’m seriously considering now that a 43x MOS is coming to market soon and I carry a J-frame more than anything else these days.
Dot it or don’t dot it. I don’t think anyone ultimately cares, but more options are pretty cool. People are also coming around to the fact that dots on pistols aren’t just a meme anymore.