Yeah, seems like it. I'd never invest in one of those. First of all, their grey skills are to high, secondly they cost to much and third, they're not fast trainers.
For comparison, I just grabbed a 5* fast training MC for 4T. Once he reaches the same amount of stars as the suggested academy players, his white skills will be off the charts.
OT: I updated the training calculator and corrected the errors. Have a look when you have time.