It's been one of the poorest "animations" I've ever seen; not in the One-Punch Man series, but in anime in general. Not only there's lots of just panning and zooming, but the image that's panned or zoomed has much lower quality than the manga. Lots of frozen facial expressions with only the mouth moving, it reminds me of Clutch Cargo or of the cut-out animations of Monty Python's Terry Gilliam. Of course all anime do this to some degree, but in this case it's so extreme that you become completely aware of it.
Blame or no blame, one reason or another, it's J.C. Staff that made this, and it sucks. I wonder how an animation studio can do something like this; it affects the studio's popularity and can only have negative consequences down the line.
But nope – not even a mention of Diamond Open Access, not in the article and not from the interviewed people apparently.
"Mutual benefit" my a**e.
Academics are apparently just stupid.