All that logic about Lakewood makes sense. Though I would also say that people overreact to a 650 OPS. To the Phillies that is doing OK, especially from a 19-year-old. To the average fan it is struggling. Now if these 2 players were 21 and put up these stats (like an Alastre) they would not be due any sort of promotion.
Tools are part of the equation also. Players with tools generally can keep getting promoted because their tools allow them to survive at higher levels. Freddy Galvis kept getting promoted to Reading because it was the right decision to put him in an environment where he could learn to hit enough at the big league level while his tools allowed him to survive defensively.
Good prospects should be challenged. That does not mean they should be rewarded for failure, but if there are enough good things they should be promoted. Muzziotti and Ortiz did enough good things (like Moniak) where they deserve to be promoted. I have been as tough on Moniak as anybody. But I also understand that he should be promoted (last year to Clearwater, this year to Reading) even though he has not dominated. My criticism is more the realization that he is likely a 4th OF type, not what one wants from the 1-1 pick.