If you're going to define deflation as a fall in the price of any basket of goods, then you're just using it to mean 'the price of something went down'.
That would be the same thing as a rise in the value of money.
You can [flexibly define things narrowly or broadly] if you want, but it's hardly helping the conversation.
Do you use a different word for "temperature" for the temperature in your home, because some other parties use the word "temperature" to mean "gobal temperature"?
Different economic actors will value different things at different rates. Economic actors that happen to value computers highly will indeed perceive a rise in the value of money when computer prices drop.