No one said your engine wont survive. Burning oil 100% has an impact on every engine it occurs in. The fact you are comparing this to a magnet on a fuel line says all I need to hear.
No ill effects other than burning oil in the combustion chamber for no reason at all. Because burning oil is great for an engine. Or do you just not understand where the oil is going now?
Maybe you dont understand that dealers are independent? Toyota will not be warranting your OTT tune. Your dealer might, but if the motor blows good luck getting them to go out of pocket and you will 100% be getting a used/rebuilt one.
For the record I dont believe your motor will blow. OTT is...