Padres, I went back to the original article and read the comments section. One of them gave us the answer to your question.
‘Saint Matthias Anglican Church was a sweet little gem. I attended when I lived in the neighbourhood. Father Dye was the Anglican Priest at the time. That church joined with another Anglican church. I’m so happy to see that the church lives on as another Christian church Saint Antonios Eastern Orthodox Church. A lovely transformation.’
It appears, according to the diocesan web site, that members of St Matthias were joined with Church of the Apostles, also in Halifax.