Routine Flaws

I just came upon FiftyPullups. It states several times: 7 weeks to 50 pull-ups, but when you look at the actual program, it's actually 17 weeks and that's if you can do 13 pull-ups in one session at the start. There's also prep weeks that include negatives, and if you were to do them as well, it would be 23 weeks total (6 months) and the highest rep you do is 35. So even after 6 months, you're taking a long shot in trying to hit 50 reps. That's a similar problem with HundredPushups, it claims it can get you to 100 reps in a row, but in the program, the highest rep is 60. And somehow you're supposed to bang out another 40 reps after doing 60 for the first time.