Luke's a new kind of Jedi, that learned to use the force without having to follow the strict rules of the Jedi order.
Seeing as "forbidden love" was a contributing factor to Anakin's downfall, i think, even the last 2 remaining Jedi, would agree that the 'forbidden' part was the problem here, not the 'love'.
Had Anakin been able to talk to Obiwan about his nightmares "dude, i'm afraid my wife will die!" and have Obiwan support him "we're not going to let that happen, also these visions aren't necessary premonitions of what WILL happen but what just MIGHT happen. Still, you have my support, Anakin"
There. Problem solved.
I don't know. Luke changing the rules for his own benefit and then abandoning his daughter as a scavenger on a far away planet? The idea that Luke is both a corrupt Jedi and an awful father makes me hate this theory.
Luke himself being abandoned makes this crazy, as it is known that the children who suffered because of their parents try very hard not to repeat the same mistakes.