Myfriend. Maris Ayin for who?
My original comment included a line which I then deleted that said I did what I did under the guidance of my Rav. My Rav knows that Taz too, and he still told me it was OK to attend this “simcha”. So, unless you are a posek, please don’t issue blanket psak based on “lo and behold, I found a Taz!”.