@HMom16 I would think that the LL process at UPenn is essentially the same and follows the same rules as other Ivys.
A PWO sounds like football, or perhaps hockey or basketball so others may have more insight for those sports.
My understanding is that assuming a positive pre-read, the question should be is the student being offered coaches support and a LL. If they are not being offered a LL, then I would think that a "PWO " would have the same odds in admissions as any other student applying and the same as other potential recruits/athletes applying without receiving a LL.