For me it’s all a question of priorities, what and where you ride…
I’m more of a fair weather road rider, and all my road riding is in the UK on not especially big terrain. I want a bike that’s light, fast, responsive and makes me feel like a pro when I’m riding it even if I’m not one. With that in mind, I’m still on rim brakes (although have dabbled with discs).
If you ride in adverse conditions, on big hills, or you simply don’t mind a bit of a weight gain (or spending a lot more money) for the reliable braking power of discs then they’re a no brainer…
EDIT: For me, the wheels make far more difference to my overall riding experience than the brakes ever could. But I suspect that has a lot to do with most of my riding being trying to keep up with faster guys on flat or rolling terrain over 30-40 mile blasts when it’s not raining.