Maybe! I don't think it's so much about blaming people for their own suffering, but more of a recognition that suffering is just another state of being, and in a larger context that being is a part of everything else that is.

In a broader sense I don't think that mindfulness practice needs to directly lead to nihilism, but it certainly can without an underpinning of philosophy that can make sense of what's left after dismissing the subjective as the only truth.

Much like the monk that remains seated while self-immolating, it is possible to remain mindful and even euphoric in even the most extreme forms of suffering, but that said it would be disgusting to try and proffer that example as a way to dismiss the suffering of others in a current state. "hey that guy could do it, so why don't you just sit and be one and then you won't have any problems?" Of course that is rediculous. But it is a practice that can lead to reduced suffering, and it is available to everyone. But it's much like the tech bros that tell people suffering from poverty to "just learn to code". Like yeah, it's an option, and a thing that can help some people, but just because it's a thing that worked for you doesn't mean it's going to fix everyone else's problems, especially not right here in the now when that suffering is happening.

Anyways, your last line is real. It's part of why I got off track of a regular practice years ago - it really did feel weird to be disconnected from people in that way. I felt like Dr Manhattan, being tired of these people and their problems, as goofy as that sounds. I'd like to think that's not how everyone reacts, maybe that was just my young adult narcissism in action.

In another way though, it was almost like everyone in the world was on fire, and I had just jumped in a lake - why is everyone out there still running around screaming in pain, and insisting that I was the weird one for being wet?

There's probably a balance there somewhere. I'm not really sure where I'm going with this lol, but I appreciate your viewpoint is what I'm trying to say.