No i weren't wrong.
Do you think an electrical engineer will be concerned with biology ?
He may well be, particularly if he is working with cybernetic implants.
Many of the best findings occur at the meeting points of seemingly distant areas of knowledge.
General study doesn't mean biology is needed to be a major in electrical engineering and/or to be involved in its major books.
It is denial of truth at its best.
No one is denying that it is possible to be an electrical engineer without much knowledge of biology. It limits knowledge and applications, but it is not (yet?) a particularly limiting flaw.
But it is you who is insisting, for some reason, that there is no point to it.