Is it?
I think it's an opinion.
How would you empirically test if the answer was right or wrong? What's on Wikipedia is also someone's opinion, isn't it? What's in a book that Wikipedia references is again someone's opinion.
If you can't write a program or other set of instructions to test it... it's an opinion.
'How does Dr Foo say that MVC maps to database-server-client?' would be a question of fact though.
That said, I don't think I've seen MVC used with the same meaning twice... what makes the question even worse.
Apple's definition of MVC specifically contradicts the Wikipedia definition for MVC that OP gives.
https://developer.apple.com/library/archive/documentation/Ge...
The current Wikipedia content on multitier vs MVC is quite vague.
https://en.wikipedia.org/wiki/Multitier_architecture
I think "correct" is a reach here.
Stock CRUD multitier should not be confused with MVC, nor vice versa.
A company that doesn't understand the differences is a Red Flag.
If you hiring involves ego, you're going to end up with a Challenger disaster some time down the road.
I don't think this should be the default recommended advice. It could just as well cost you the job, if you are interviewed by two people, with the other also knowing what his or her colleague said was wrong, and being disappointed you didn't find a way of politely disagreeing.
In job interviews, I would count it as a positive if I could see that the candidate could handle disagreement. That is in my view more important than getting a rather generic technical question "correct".
I think it was a poor solution. There are ways to respectfully disagree.
"I really think I'm right on this one. Since it's a question of facts, not opinion, we could easily verify it later."
Did the author know they were hired because they didn't rock the boat, or despite of it?
If I were hiring someone, I would want to know I'm hiring someone who can argue politely for what they think is right, and not see the argument in the context of "winning or losing", but in trying to find the best way forward.