Even though I'm an avid Fuji shooter, I would disagree with this.
There is something 'just right' about all the Fuji X100 series, the handling just seems better, the 23mm lens is just a better focal length for all round shooting, I know its only 4mm different from the 27mm (35mm FF v 40mm) but in reality its a big difference especially when you start to shoot wider view landscapes. And then you have the near silent leaf shutter, which means that you can use the camera very covertly, and the built in ND filter, more flash sync options, etc, etc.
I tried an X-E2+27mm and really wanted to like it (and reap the funds from selling by X100), but it just isn't an X100.
If I had to sell my Fuji kit, the last things I'd sell are the X100F and the WCL, all the interchangable lens stuff can go first!!!
S/H the WCL + TCL are quite cost effective, but I agree that new they are quite pricey. I disagree about slow to fit/remove (as well), If you don't have the outer ring on the camera, they are very fast to fit, and of course you are not opening the sensor to dust and debris as well.