UPDATE: While I was at OTS, the leadership specifically said "We read everything online about how the physical training here is not challenging, so we are specifically inceasing the intensity and frequency of PT."
Personally, I thought the PT at first was a bit forced. We seemed to do 5 days straight of running (~ 3 miles at a slow pace), then rest for a day or two, then 5 days of mainly chest exercises. At the end of the course, a lot of people had complaints about how the workouts weren't "varied" enough. The leadership seemed to take notes on that and I'm sure it'll be more of a mix of muscle groups for the next few classes.
Our class was specifically told we were doing a lot more PT than previous classes, so YMMV... All in all, I can't complain, but I would liked to have had more personal PT time to hit the gym instead of always doing body weight stuff... But you can't make everyone happy.