It seems to me that the Medics are saying two medics on a team are better than a medic and an emt. Meanwhile the Basics's are saying a medic and an emt is better than just a medic.
Both are correct.
Are we done now?
An extra set of hands can only help a lone medic. That's obvious. If that person is also a medic, then they are more useful. If you have two medics and a couple of basics, it works even better still. Everyone is a valued resource.