This is unfortunately untrue. In fact saying that this is untrue is downplaying it, this could not be further from truth and is ridiculous to even consider. Anyone who has used all of these programs knows how incredibly awkward blender is to use. Even moving an object around or saving a scene is a disaster so forget about cranking through shots in a studio under a deadline.

If blender was better, studios wouldn't pay thousands for licenses of other closed software. They do though, and that should tell you something. Animation studios large and small don't have money to burn but the truth is that the tools make a huge difference in productivity and blender is not even in the same league as commercial tools.

The thing is, they differentiate themselves from open source offerings by having a massive ecosystem and guaranteed compatibility across your whole production pipeline because everyone else is using them as well. Just as Microsoft have with Office and Adobe have with Creative Cloud, Autodesk have a degree of market dominance because of community and networking effects, regardless of any features or usability or pricing issues. However, unlike Office or CC users, there are probably relatively few professionals using Autodesk products who operate in isolation or only need to share data within their own small group, which makes it much harder for any disruptive newcomer to challenge their position.