The main problem I see is with periodization is that the average weekend warrior would rather see slow steady progress over a long period of time than short peaks of maximum performance unless your psyched for a short trip or something. It's also way to anal for most climbers to pursue. The average climber might not reach their peak genetic potential without following some sort of periodized training schedule, but most of us could get quite a bit stronger simply by bouldering at the gym a couple of times a week.
Additionally, until you get up into the 13+ range, strength isn't really that big of a deal on most sport routes. Usually there's a power-endurance failure mode rather than a strength failure mode. Index could be an exception I guess, but I've rarely done moves on a rope that felt harder than V-3.