That’s exactly what I am saying regarding this new policy. Yes, it may bring more junk products to the marketplace, and yes, it’s the users’ responsibility to find out if a product is of a standard which is acceptable to them. Leave Microsoft to test if a product brakes the game itself or brakes any marketplace rules. But let the rest of the tests to be done by the developer since they will probably do it anyway.
Along with this change, if they implement a short refund window, like steam, it will be pretty good.