I can't agree. it's like saying I drive a gas guzzler and can't afford the gas so I got a second job just to pay for the gas and now I can afford it. The problem of the gas guzzler is still there and similarly hard water raises it's head in many ugly ways. You will never get the quality of lather no matter how much more soap you add or water unless the soap is formulated for hard water. Hard water does unpleasant things to soap as well as your skin and there is no way around that. Of course it also destroys appliances and water heaters and your pipes too.
I've lived with this issue for over 30 years. If you have hard water do yourself a favor and buy RO water at Wally World. It's cheap and a gallon for shaving lasts many shaves. You can also buy a tabletop distiller for around 200 bucks which can be used for other things too.