I know, I know (in fact you should recognize my profile page pic 🙂 )
Several years ago, no watches, no barometer no anything, I was caught in a light snow storm around Rosetta refuge (dolomites) but honestly I don’t think that having baro data available, I would have been able to avoid it.
Of course I agree it’s useful for long activities (many days) as a forecast.
Maybe ,I’m not sure, when we’ll be able to add graph to custom sport modes we could add alt/baro graph to it