Gatorland really plays up the hillbilly schtick on purpose, both in staff action / comments and signage you'll see around the park.
But if you talk to the keepers, certain people you saw in the vlog, management, etc., they drop the schtick and they're super serious and super educated about all the animals. They're involved in conservation efforts in other states and countries, as well. So they're a reputable partner to different organizations.
Those animals are so well taken care of and spoiled. It's really a great place.