If you wish to look at it that way, yes. But wouldn't it be both convenient and safer to work on your fan with the lights on?
Also, should you sell up and move on, the presence of a dedicated fan isolator, situated where it can be seen and used, means a new owner can replace the fan without the detective work of figuring out how it is supplied.
Also, should you sell up and move on, the presence of a dedicated fan isolator, situated where it can be seen and used, means a new owner can replace the fan without the detective work of figuring out how it is supplied.