I love the 1.4 primes ( I have the 16mm and 35mm, plus the 56mm 1.2 ), and would agree that not having WR isn't much of an issue as most Fuji lenses are well made and quite robust anyway, even the cheaper ones. There is absolutely nothing wrong with the newer 23mm f2, 35mm f2 and 50mm f2 lenses .... they are smaller, cheaper, more weather resistant and focus a lot faster than the older wider aperture lenses. Plus, IQ is great also. But, like Raymond I prefer the wider aperture lenses for portraiture / natural light photography. If I was shooting subjects that require fast AF like kids, family, pet dogs ... then absolutely, the newer f2 primes perhaps make more sense. People just have to figure out what is the best tool for them.
The above in bold is interesting as I was just about to purchase the 35mm 1.4 but its mainly for taking pictures of my son who as with most kids never stands still! Would the f2 lense be better? I was hoping for maximum bokeh but no use if most of the images I take are blurred?!