The heater hose bypass would have done the same thing, only with more coolant flow. There's a reason the heater core supply line was on the engine side of the thermostat- - - -it allowed for at least a little coolant circulation, even with the heater control supposedly in the "cold" position. Disabling the heater flow was the main cause of the problem in the first place.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!