No, not dangerous. Ideally the disc’s spokes should be pointing the other way, so that they are being compressed under braking instead of stretched
I don’t agree. Your disc should be under tensile load when braking, the other way could cause buckling.
I’ve always had mine rotating from the inside to out with the trailing edge at the rim.
Mind you, just show that it probably doesn’t matter if people have them both ways with no ill effects.
Anyway, you have them on the right way imho, tensile load is good for a thin disc, not compressive load.