Thing is with cooking and gardening shows, it's customary to involve people with actual expertise. Either gardeners / chefs present themselves like Monty / Jamie or you have a presenter who talks to them (less usual these days without another element like travelogue or competition but Bake Off is an example of non expert presenters talking to expert contributors). As far as I know, Meghan has no expertise as a chef, gardener or TV presenter, so I don't get what her role would be, if she's actually in it.
And the celebrating friendship and entertaining sounds like that annoying table of people next to you in the restaurant, who talk a bit too loud because they think they're super interesting and/or hilarious.