One of my Thru'Lines matches has disappeared too. This was only the link to my Jones line and although the match only had a very small tree Thru'lines had decided that we had a common ancestor. I had traced it back and it looked OKish but as his name is Smyth and I'm researching Jones there could be a multitude of errors!
As to the new profiles - they now sometimes show the person's ethnicity which to me indicates that they've taken a DNA test but the sentence " *** is either not a DNA match or has not taken a DNA test" is still there