I didn't want to emphasize this as a reason "against" DX11. It's just that the DX11 integration offers nothing despite a few nice-to-have features and some possible performance improvements (which on the other hand would require adaptations of the renderer and shader code so integrating higher speed-ups is no fire and forget task that gets done if you just support what DX11 can do). So the only argument left would be an integration because it's a standard nowadays and everybody uses it / expects it...

That's what I wanted to express: There's no such need of a DX11 integration as hardly anyone uses it (properly). This wouldn't make DX11 support a bad thing but if there are better / more valuable things to do those should be preffered...