Someone is always the slowest, and it is almost never the person who worried about it beforehand. Instructors set pace from the middle of the group and regroup at every junction, so the trail never turns into a race you did not sign up for. The people who look the most confident at check-in are often the ones catching their breath at the first climb. That is normal outdoors.
The ground is uneven, and that is the point. Balancing on soil instead of a sprung floor pulls in stabilizers that a flat surface lets you skip. It is also why the sequences run shorter outdoors: a hold at minute forty of a climb is not the same movement as the identical pose at minute four of a heated class. You trade some precision for a workout that already includes cardio.
You could, and most people do not. The argument was never that these two things are impossible to separate. It is that one booking, one meet time, and a group waiting at the overlook makes the recovery half actually happen instead of losing it to a shower and the rest of your Saturday. The format is a forcing function for the stretch you already meant to do.
Distance, elevation, weather, and a changing view do work a studio has to manufacture with music, heat, and lighting. That does not make studios fake. It means the outdoor version spends less energy convincing your nervous system that something is happening. People who book both usually keep the studio for alignment weeks and the trail for everything else.
If you want ninety minutes of silent floor work with props, book a studio. If you are recovering from an injury that needs close spotting, book a studio. If your only free hour sits under a lightning forecast, book a studio. Hiking Yoga wins when you want cardio and recovery in one outdoor booking. It loses when the day asks for precision, heat, or weatherproof reliability.