I'm a 'one fingered pecker' I type with one finger.......so I'm a litte slow...............but you really need to stop using 'blanket statements'.
RTV silicone is just fine for use on any cork gasket(and some others, such as water pump, thermostat housing), but there are 2 rules.......
Rule 1: if putting on a gasket..............use just enough so you can just see that it's there.
Rule number 2............if leaving the gasket off..............use less than rule number 1.
EDIT: I'll add rule 3, that I've found out over the years.
Rule 3: If leaving out a cork gasket and replacing with RTV...........use the tube that comes with the silicone, make a continuous line around the pan and all holes, making sure it is all even..............no guesswork, it's gotta be done this way. then after it sets good..........install pan.