If you are in the UK, then the way our normal power circuits are wired means that each outlet must be protected with a fuse. This can be done by using a UK plug, which has a fuse and can be pulled out to isolate the appliance, or it can be done with an FCU, which has a fuse in it that can be removed to cut power, and frequently also includes a switch and a flex outlet.
It would be wrong, and very strange, for a competent UK electrician to wire a flex outlet plate with no FCU. There is a way it can be done using a dedicated radial circuit fused at 16A as might be done in some other countries, but it is more work and more costly.
The manufacturer's installation instructions for the appliance would also have said that it must be protected by a DP switch and fuse.
There are a few barmy people who consider switches to be unsightly and like to hide them inside cabinets where they will never be found.
If the flex outlet is accessible, it can easily be changed by an electrician for a switched socket. Or if for some reason you have an aversion to plugs, a switched FCU with flex outlet.
Otherwise a switched FCU must be fitted in the supply to the outlet, which may be more work.