This spoof was clearly done out of love.

I love the whole thing but I listened to the opening stretch several times. "I don't hit my baby." - Host: Do you want me to hit it? - you're not gonna hit my baby - Other host: I'll hit it."

As a fan of both Radio Lab and sketch comedy, this LHR episode is one of the funniest things I've heard all year. Clearly it was done with love and plenty of RadioLab fans are able to get that and enjoy the hell out of it.