Debatable as it is if they should have another movie or not (which most fans can agree they want another), there's no doubt the Muppets should be keeping up on Youtube.
Click bait vs. 10 bucks a head (or more) movie, click bait's gonna win every time. It's cheaper to produce and easier to get the word out. Casual fans who can't be bothered to see 90 minutes of the Muppets because they feel they've outgrown them on that level will love seeing a wacky, nostalgic trip that lasts 5 or less. And no matter all the talk about MMW not making that much money, they didn't exactly rush to create a lot of viral videos after the successful enough to be called a success TM film, either. And while it's debatable if that's why MMW underperformed, it's baffling that they had so much success with Bohemian Rhapsody only to not keep that up.