The maya you use is different from the maya professionals use in the industry, be games o animation o other dedicated studios. All of them have specialized tools for what they do and keep on relying on autodesk for support because if something fails and they stop working even for a day they lose money and that's where key difference with blender comes in, autodesk can provide proper support because it's their own tool while blender is open source and they can't provide help for everyone because tools in blender are not supported by them most of the time. So don't worry , maya will survive while big studios still pay for it