Edit 3: the question being closed due to being opinion based? The design causes problems that are not in the other design, there are no benefits provided for the restrictions that the design imposes, therefor it is an inferior/wrong design. I was really hoping to see any benefits for the traded off usability but seems there are none.
The chargers with USB port on a right or left hand side on a power board intrude on the space of the next outlet next to them, the charger with USB port on top doesn't have such a problem, my question is what is the point of symmetry breaking chargers? There are at least 3 other options that are not intrusive on the next outlet on a power board. Here is one from a big enough manufacturer that should have known better about the problems of this design by now (2021).
Edit1 : Is there a patent issue that might be forcing a manufacturer to prefer this flawed design over the other? while browsing google images I noticed more side types from the same manufacturer.
Besides patent constraints to opt for a worse design are there other any other possible factors?
Edit 2: Thanks to perfect answer by jsotola , it seems the charger might have been designed for a different setting and was never tested for the other settings, even though it might have been a perfect solution at one point having it moved over to other markets and settings no reviews was made and a perfect solution became a flawed design.
The only other possible explanation besides patent constraints on design could be financial and lack of a QA review process for a design.