True, but it's been open source now a lot longer than it was closed source.
I would also say that it was never even close to reasonable competition to commercial alternatives until it open sourced, and it was a while after that before it started to catch up. I still remember some of the artists at Gearbox laughing when I brought Blender up in the late 2000s when I was a teenager touring the studio.
Don't really see why this is relevant. Blender was open sourced over 20 years ago