Considering I haven't been to the parks since last September, I'm totally fine with them continuing stuff like this, especially since I'll be down there next week!
Feels like Mardi Gras was a nice "Ah-Ha!" moment for the parks, showing this is a good draw to the Studios as VelociCoaster will be doing it's job to draw folks to IOA. An unlike Epcot where the festivals are pretty much a crutch for that park, this feels like a sweet addition for the Studios.