Seems a funny thing to do, makes sense if you have 20s and 4motion or something but otherwise it seems a bit strange not to use the available space under the van, also looks like it’s obscured the number plate so really should have another plate on the wheel shouldn’t you?
I have not looked at my spare for a long time (I assume it’s still there) but assuming it is why worry about what it looks like as long as it’s serviceable and then the biggest challenge will probably be getting the thing off especially as I have an antitheft fixing!