He knew and knows the perfidy in the OPC and hence has spoken out.
I dare say he knows it better than any lay person from the OPC or PCA such as yourself.
One can read Paul Elliott’s book, Christianity and Neo-Liberalism: The Spiritual Crisis in the Orthodox Presbyterian Church and Beyond. That book examines in detail the false doctrine of salvation now being taught in the Orthodox Presbyterian Church
the problem as it's ruling-elder says lies that the OPC no longer believes in the Gospel, but distorts it irrevocably.
Hey, look, if you want to believe what one ruling elder says about something, go right ahead, I can’t stop you. For anyone else reading this, I’m pretty sure they can figure out one ruling elder doesn’t even deserve a hearing.
And, well, there you have it ladies and gentleman. The Roman Catholic can come up with: Appeals to one elder. Generic appeals to Scripture and “Tradition,” without any proof that what they are saying actually is in Scripture or “Tradition.” Don’t forget the “we’re older than you are” and “we’re more united than you are” canards. As for the latter of those, it appears Boston Roman Catholics are dealing with the same thing we Presbies are: http://www.freerepublic.com/focus/f-religion/2746986/posts, and we’ll see if the anathemas are as forthcoming as they were at Trent.