One question for you since you seem knowledgeable about the lore: What happened to the Nephalem after D3? In D3 the player character is a nephalem and in D4 we’re just some random human as far as I know. And that’s fine. I just want to know what happened to the player characters of D3 in the transit to D4.

As far as I can see it’s a logistics issue. I don’t even live in the UK but germany has the same issues (3-6 months wait for therapy). There are clearly not enough therapists and those apps offer at least some help for people who can’t get a therapist right now. It’s better than nothing I guess. But doctors really need to manage this well who gets what kind of treatment. If you have severe symptoms those apps do nothing for you and you need more intensive care.