No. My computer is a tool I actively use. The TV is an almost entirely passive consumption device. Was performance not good enough when it was new? If it wasn't, will the new software versions truly buck the trend we've seen in software for the past few decades and improve performance? What new features are necessary? Video playback has been a solved problem for the past few decades.
All of the software on a tv is a client to some service, and the service changes constantly, and so must also the client whether anyone likes it or not, and you already knew all of this perfectly well.
With streaming apps unfortunately you can run in compatibility issues if you do not update. So for people using the TV for streaming, it does make sense to at least update that part of the software.