Damn, you are right. Way to keep me honest.
Mirrors is one I did not get till around five years after I got in the band. The friends I had were BOC fans (who helped get me into the band) all said it was not worth getting, and that was back before we had the internet (later 90s) and it wasn't so easy to just anything and everything, so I just never got it, but once I heard the live version of In Thee on Heaven Forbid, I wanted to hear the original, so I said to hell with it and bought Mirrors. It was a pleasant surprise.
On the one hand, it was clearly a drop-off from their other 70's work, but it has some great stuff. The Vigil is one of their best songs ever; the structure of that song is masterful. The Great Sun Jester is almost as good. Lonely Teardrops, which feels like their attempt to do a yacht rock song
, is so damn fun and catchy, I can't but love it. The original In Thee is also great of course, and I like the title track a lot. Dr. Music is also pretty solid. The other three songs are all just okay. All in all, while somewhat of a hiccup, they still gave us some great songs.