I had this argument with the council electricians when they fitted a disabled kitchen for my mother, I wanted simple cooker connection units only on the wall, the kitchen was supplied from it's own dedicated consumer unit in the kitchen next to the back door, so one step from oven, two steps from hob and on exist route to switch off supplies, however they insisted of fitting cooker isolator and FCU on the wall even when dedicated supplies from the consumer unit in the same room.
Also you have to reach over the hob to reach the switched FCU and isolator, so really no point in fitting them. There is a requirement to have an isolator within sight of motors, but not items like ovens and hobs, with the old eye level grill type cooker it was considered you should have an isolator as if you have a fire you can't access the cooker control knobs as they are directly above the rings, some induction hobs have the knobs at the side, I would consider in that case you want an isolator, the same with silly touch controls there is nothing positive to switch/turn off.
Putting the switch or isolator where it will take longer to access the switch or isolator than go to the consumer unit is pointless, in the old days of fuses then we could not really safely turn off one circuit, but with MCB's it is easy to switch off a circuit at the consumer unit.
However we are talking about design, and the person who designed has to sign to say he designed it on the installation certificate, so however ever much I felt the FCU and isolator was pointless, it was not my call, it was up to the electrician signing the paperwork, so the FCU and isolator were fitted. So in real terms we can't answer your question, the only person who can answer the question is the person who is going to sign the paperwork.