Well...I'm hoping and assuming given that they existed quite happily for years in their current form before getting involved with Warner Bros, they can continue to do so going forward. That said, given the current state of the cycling industry and the rather bumpy income ad revenue from youtube brings in...I can see why you might be worried. I guess it might be a bit embarassing for them but I'd rather see them set up a Patreon revenue stream before they just call it quits and disappear. I'd chip in, a little bit.
I wish Road.cc had a bigger youtube presence, they actually do reviews and aren't as beholden to keeping sponsors happy.