Sorry for your loss. But please understand that the failure of one airframe does not mean the planes are not airworthy. I have a Phoenix Extra 300, and an Edge 540, which I fly the hell out of doing violent aerobatic maneuvers. My planes have never failed me. A number of my fellow club members have Phoenix planes and they are all fine! One should not condemn a manufacturer due to the loss of one plane. The wing could have had a crack in it due to hanger rash for all you know.
I contacted Phoenix Models about a missing part, I received a message that they were sending me the part within 24 hours. I was speaking to a rep from a very large manufacturer at Top Gun one year and he said folks call all the time saying there was something wrong with a plane, that it broke in mid air. He said we know our airframes, they are will never "break up" in mid air.
I am sure your plane had a reason why it broke in flight, and a hard landing or mishandling are probably the cause!