As long as the hub fits trough it is OK.
Trailer wheels as far as I know and have been able to fins are not HUB CENTRIC.
The lugs locate the wheel centered on the
axle centerline.
These lug nuts need to be accurately torqued and often especially when new wheels are fitted or until the
paint is worn off all of the mating surfaces, hub, back of the wheel and the seats for the lug nuts.
The wheels on the pictures
Casita looked fairly new and had probably not been torqued since it left the factory.
It would be nice to know.
The failure still looks like fatigue fracture from loose lug nuts.