I agree that the reasoning is sound. He was the one who coined the concept, and had originally named it as an homage to the person who inspired it. If the inspiring person doesn't want their name used going forward, and it's fine if the homage gets moved to the creator of the term. To be honest, anything else might sound contrived or arbitrary.
Often, ideas/theories/arguments/laws that are named after the person who popularized them. This particular change comes from a place of kindness, and is mindful, respectful, and appropriate.
Also, in my head-canon, "xandering" sounds like a non-linear "wandering" with lots of cross(x)-roads/decision points where you can go anywhere, all sandbox-like. I also have been playing around with saying it out loud with a terrible posh British accent, "xahndering" as if it rhymed with "wandering."