That's a good starting point. I'd drill down even further and ask "what does the user do with the application?"
If the user needs to look at multiple screens at a time (e.g. like a mail client or something of similar complexity), then they're a candidate for an SPA. If the user does not need to do that, the app is probably simple enough to not be an SPA.
If the user needs to look at multiple screens at a time (e.g. like a mail client or something of similar complexity), then they're a candidate for an SPA. If the user does not need to do that, the app is probably simple enough to not be an SPA.