They are carrying 7 WRs. Under the current practice squad rules, where you can elevate two guys every game, PS players ARE your depth. Cain is better than the 5th wide receiver on any NFC East team, better than Reagor (who is #4 on the Vikings), better than the Chief's rookie, etc. And they have two other guys who have shown potential that they are developing. I'm fine with their wide receiver room. Who did you want them to carry? Reagor?
And I can't find a single team that is carrying more than 4 RBs on their 53 on the ESPN depth charts.