This has been some time coming, unfortunately. Subscriber growth has been flat, view counts on episodes have been declining, and the individual channels and Twitch streams have been steadily becoming more lucrative and efficient to produce to the point where sticking together for nostalgia's sake just wasn't a realistic goal. Each member of the team clearly had developed different personal creative priorities, and I would imagine the behind the scenes arguments on how to "save" the channel was starting to take their toll on each's mental health.
Great respect to all of them for providing many hours of joy for myself and others, but this is ultimately for the best, I think. This is not the end for any of these guys, and I will be eagerly anticipating where their passions take them on their individual projects. And their inevitable crossovers.
With all that sappy shit out of the way, though, the end of the channel means Liam can now officially and definitively be canonized as best Best Friend, and I will hear no arguments otherwise.