Frustrated

All you need to do for that argument to hold water is quote where the OP said the head was destroyed when he brought it in...
The OP "just got done porting and polishing" his heads. Is he going to use a 3/4 race camshaft too?

"and polishing" tells me we are dealing with a rookie here, as would a 3/4 race cam. He didn't know what he was doing because of the procedure and terminology he uses.

It is doubtful he would take a head in for guides and seats if he knew they were destroyed. Given his skill level, would he even recognize the same?

Really? "I took my ruined heads in for seats and guides!"

Maybe the machinist is being a nice guy and not saying, "You really screwed these heads up boy!"

Come on, my son ruined a 100 heads before he got really good at porting.