It seems impossible to me that one can perceive change and yet it be an absolute illusion.
I can see how it would be possible within the limited context of imagery. Its possible that one can put many still pictures together and create the illusion that the images are changing or moving. They do this with animation. But one requires “change” in order to create the illusion that the images are moving; one requires a process, otherwise its impossible to create the illusion.
Thus it seems to me meaningless and impossible to claim that all change is an illusion.