I wasn’t raised in a calvinist church. Upon studying the Bible, I chose to be a calvinist (/heavy irony). I’m now a member of the PCA (Presbyterian Church in America, one of the conservative presbyterian churches).
Had you been raised in a hyper-Calvinist church; you would have understood the dour comment and likely agreed.
I know a now elderly guy who grew up in the Christian Reformed Church where the Gospel was never preached. He and his parents were faithful members and attenders.
His expression regarding the CRC was, “I was raised in the CRC, but praise God, I got saved.”