So there's still hope for sealed primes, and Fuji sure has shown there is a market for them with their f/2 WR series.
Have they really? All they offer are the f/2 ones, nothing faster. So they haven’t really proven anything other than there is a market for weather sealed lenses, which Olympus has also shown.
A good friend of mine shoots Fuji and is jealous of our Olympus lenses. He is a wedding and event photographer and needs the faster lenses and because he sometimes needs weather sealed had two but both. He much prefers the Olympus approach where he could just buy the Pro primed and be done with it.
So the grass is not always greener.