Earlier quoted context omitted.
It's not about giving preference to owner-occupants; it's about neutralizing the preference to landlords that would otherwise result.
Again, that is inherently a policy decision that reduces density and affordability; by definition, "landlords" are people that own and operate multi-family dwellings. You could just as easily ask "why not give more of a preference to landlords?" It's probably useful for you to understand my, uh, priors? about this, which include the fact that I live in an overwhelmingly SFZ community that actively works to prevent th…
How zoning should work is an orthogonal question in my view.