Eiken is pretty famous all said and done, this author was probably contacted by a AI company that paid for "remaking" the work, it would get both publicity for the stunt, of course, the mangaka got dragged in shit for tainitng the craft, but doesn't seem like he was doing much, this was easy money and it made the original serie name go a round, that is good for him.
I checked some pages and is pretty bad, as the artstyle is not consistent, characters don't look like they should in the same page, and the boobs...we lost the boobs.