> after some inflection point, does your likelihood of survival actually increase with altitude?

For humans, no. After ~10sec you’re falling at terminal velocity, which is generally 2-300km/h, and your odds of survival are extraordinarily close to zero.

This lady had a double malfunction, where there were issues with both main and reserve parachutes, but per a police report (1), she was descending at 60km/h, so she must have had at least some parachute material out and slowing her fall.

She’s very lucky, despite what’s likely to be a shitty next couple of years of rehab, but this isn’t a “fell from an airplane without a parachute and survived” miracle.

(1) https://www.lenouvelliste.ca/actualites/une-parachutiste-gra...