i see things in a similar light: he’s got some poor quality products, however consider the 737: its not very good, i wouldnt recommend it at all. however, it may be good enough for someone who isnt too picky and doesnt want to pay pmdg prices for pmdg complexity.
i have no issue with someone charging for liveries (assuming its their own work, rather than a collection of things they grabbed from elsewhere) but i personally wouldnt pay for liveries, but ive gotten to the point where if i cant see it from the pilots seat, i dont really care what it looks like. to each their own