To be fair, many consumer camcorders now employ a cover which opens with the camera in operation and closes when it is not
Having a threaded front suggests ( to marketing ) that you might want to use a filter for protection or creative effect or even a wide angle adaptor, not unreasonable but in the last 3 years many useful features have been replaced by cheaper to implement gimmicks
It seems that the wish list of JP now is a small pocketable camcorder, doing 1080p ( FullHD), able to take 10mp stills with mega battery life and a free 32Gb card thrown in