"One example given to me was that a "dead ball," not a DDB, should be called on all illegal pitches"
What, TD just said this? Or did he walk on to the field to try to administer it? Ignore a TD who makes up rules unless it affects you on the field. I can't imagine how, short of him walking ONTO the field, he could affect my job during a game. (And if he walked onto the field, I'd have no trouble ejecting him, politics-be-damned.)