This is not really a new problem. Soujorn mythic skin is yet another proof that Blizzard is trying so very hard to cater to the tryhard population that will play anything that is easy and META without understanding that a very small minority likes the hero because she has nothing going on about her besides the fact she’s better Soldier:76 and has been overpowered for a while now.
They just want to tap into this market they really couldn’t, and they are about to find out that tryhards don’t care about skins, they care about winning. Either way, this is the last thing they could try, after all they need to increase revenue by all means possible.
Do not expect her to be messed with in the next few patches. In fact, it would not be delusional to expect her to be buffed. Expect them do the most random unthinkable balancing decisions just to keep her and Freja out of the ban list. It will take a very huge while for them to understand the META is stale, boring and the same for several seasons now, if they understand it at all, and that having busted hitscan heroes in the game is only going to drive away anyone that is not a META slave.
Never forget: Freja and Soujorn have no mains and if they are ever nerfed to the level of the other heroes nobody would even think about playing them.