I wrote a comment, questioning the bizarre complaints Tom's listed above, unfortunately, Tom's has so incompetent developers they can't even make a simple comment section work. The comment disappeared into the ether with an 80's style error message in the style of "this field cannot be empty".
Long story short: GDI+ content is legacy, as far as I know. DX content is controlled by the developed software (the games) to make life easier for devs when they have to optimise their games for various hardware. Just a comparison, try running a game on the new Galaxy S8 or LG G6. Looks like &*%$, doesn't it? Bitmaps doesn't scale? That's quite shocking, isn't it! I mean, Harrison Ford did it without issues in a movie over 20 years ago! Your last point is a repeated variation of your DX complaint, with the same answer....