These unmatched MDs/DOs will effectively become PAs/NPs if they practice with restricted license (and require attendings to co-sign all their notes and take on their liability). Though I suspect they, on average, will get get paid slightly less than PAs/NPs for the same amount of work since employers know that they have will have less employment opportunities than a typical PA or NP and use that to lowball them.
Also, malpractice insurance is not required in Florida (and in quite a few states). A good percentage of physicians in Florida have been practicing "bare" instead of paying high malpractice insurance premiums. They will often require all their patients to sign waivers as a condition of treating them, saying they won't sue the physician or their practice (though it's debatable how well these waivers are legally enforced). Besides, attorneys are much less likely to go after physicians without malpractice insurance since it's a lot harder to get money from the physician or their practice directly (assuming the physician has been very smart about structuring their assets to maximize asset protection).