I know the heel/face dynamic is very fluid based on crowds nowadays, but what is happening on SD. I know that we are supposed to root for Randy because he turned on Bray, but really there is no logical reason to. Bray whole reasoning for going after Randy was to bring him into his family. While in that family, Orton won the Tag Titles, the Royal Rumble and beat Luke Harper at a PPV. So Bray made him more successful. Bray never abused him or turned on him. So Orton's response was to burn down Bray's compound and his Sister's corpse? Which was unnecessary because he already go what he wanted in a title shot against Bray at Mania. He is the heel.
That brings me to Shane. We are supposed to root for Shane because he is the antithesis of Stephanie. However, it is two sides of the same coin. Instead of screwing over faces, he screws over heels. He gave a world title match to John Cena upon return without a single thing to warrant it. He made AJ Styles get his title rematch in a Elimination Chamber, have to win a battle royal, had to beat Luke Harper and now he has to beat Randy Orton next week. So AJ is essentially the sympathetic Babyface.
I guess my point is, that I get enough of the 50/50 heel/face dynamic with Reigns and Cena. We don't need it in every storyline.