Some friction can be eliminated with helper apps, like Keyboard Maestro or AutoHotkey. I don't mind an application benefitting from a little automation. KM is universally useful, so if an app needs the help, it's already in place.

Paul Korm makes a great point about familiarity begetting ease of use. I find it difficult to use algebraic input calculators. If I work your navigational calculations on an algebraic calculator your landing on the moon may be more of an E-ticket ride than respect for mortality demands. RPN, I fly and never make mistakes.

Well, of course I make mistakes. But with RPN I make them much more efficiently.