I think you and the replies are overthinking it, because mindfulness and meditation (not to mention yoga, which she also mentions) have been hugely influential on the entire Western/global middle class for 20-50 years

fwiw her writing here seems to me to comport with some level of undiagnosed OCD or similar as well, which doesn’t strike me as unusual for rationalist circles

We've discussed before the influence of David Chapman and his Tibetan Buddhism among TPOT, but it's worth also noting the fairly big notoriety and footprint that San Francisco Zen Center has in the Bay Area and northern/central California more broadly. Anyone who ends up in the Bay and goes looking for "alternative" spirituality with a relatively rigorous grounding is likely to encounter some aspect of SFZC or its outreach pretty quickly. To say nothing of enduring idol Steve Jobs' association with the practice. It might seem surprising from the outside, but given the facts on the ground, I'm not surprised that dashes of Buddhism got roped into the techbro stew.

Note, of course, that Chapman's Tibetan lineage is something notably different from SFZC's lineage, and that the parent institutions can't be held totally liable for misinterpretations by lay practitioners and dilettantes. (Myself being one of the dilettantes!)