I must admit I didn't understand all precisely, but it seems that the fact that he was remplaced by Omar Hakim on the BIA studio recordings were not Mark's fact (as it was common said, but due to the fact that Terry wasn't happy with his drumming on songs, right ? well Mark was maybe not happy with it too, but I inderstood That Terry proposed him to be remplaced, and not reverse...
so it's a proof of humbleness, one of best human quality IMHO, and therefore a nice guy