Nah, they go way back. Their first hour long thing was what, 2009? I don't even think it was star wars either(pretty sure it was star trek). And technically they were a "thing" before that doing their home movie type stuff.didn't realize they were that early on youtube i thought they got their start with their patreon in 2014. like i know about the star wars docs but i also assumed those came out in like 2013.
The difference is that RLM looks miles ahead of every other youtube channel(or wherever shit was posted before that like on screwattack or whatever) because they actually understood how to do shit, grow and adapt to trends, actually updating their equipment over time, not spending every dime of their income on retarded shit, getting a studio to film in, etc.
11 years ago these guys had a warehouse, had sets, had proper lighting, etc.
But back in 2013... AVGN still filming at home, I think nostalgia critic had finally gotten a warehouse to film in but it was shit? Most of the channel awesome idiots were still filming in their bedrooms and shit(some still do) as that was years before the change the channel mess. The only other comparable group I can think of to RLM would be... RT? But they went hyper-commercial, exploded into a mess of bullshit, and basically wasted a decade. Jontron has a studio but only craps out a video maybe every 3 months?