This is interesting, as I've recently experienced this, but not originally, now my X-T2 has had a replacement sensor (it's a long story, and possibly my fault, but maybe not, but the good news is that those nice people at Fuji replaced it FOC, even if it took them 2 go's!!!) The original sensor was brilliant at LE, but this 'new' sensor often displays noise in the LE images. The noise is reduced if the image is correctly exposed, but if a couple of stops too dark, it is very evident. My noise is similar to the white noise in your image, I've not had any red dots, but I would be interested to see what the RAW histogram looked like for that image.
I also don't think that they are hot pixels, hot pixels would usually be peak white (fully saturated) but more like some type of noise.
For Info my first sensor was a pre-order camera and bought on release date, the sensor was replaced a couple of months ago.
I've also got an X100F, but this is a recent purchase and I've not had a chance to try LE yet, but obviously it is the same sensor.