They did this years ago. I’m not surprised or concerned. I mean, so what if they got my ssid? I had a working android device once so they also have my ssid and password. I’m still not concerned. I can change both if I really want to. What are they going to do with it, well I have no idea? Are they going to log into my home network? I don’t think so, there is nothing if interest to them on my home network so I’m not too fussed about them collecting my router’s ssid.