The strained oblique argument being attributable to the weighted ball program is paper thin, and basically unsupportable.
Janssen started a modified version of the program in April of last year (thought it was later), not the offseason. Regardless, it had nothing to do with the lower velocity early as he had that coming out of the spring (probably the reason he gave the program a try).
Cecil and Delabar were both heavily used just prior to the injuries if I recall correctly. I know there was one point where it was said that they were completely gassed. It's not all about bulk sums. Certainly there were other guys in the league abused worse, but that's not the point. Regardless, neither injury was anything concerning. Perhaps without the program the injury doesn't happen, or perhaps it's much worse. No way to tell on that. Those two are the only points that I consider to have any merit at all.