There are hobs rated at 13A or less, and ovens rated at 20A or more. We don't even know if these are gas or electric appliance?Again you are strictly correct to feel uncertain - but the answer to the OP's question would only be "no" if you think that the hob should have been connected via an FCU - which would very rarely be either appropriate or safe.
So why are my questions, being questioned, they seem perfectly reasonable to me.
This thread has been answered purely on assumptions, so why not ask the OP for clarity?