My problem is that they are so very expensive, that getting podded puts an enormous burden on anyone who wants to cut down on their training time.
For people who abstain from player versus player combat, these implants are typically a one time fee. For the PvPer, you simply do not want to risk having 300 million isk worth of implants in your head while you tackle a cruise missile spewing raven.
Before, it used to cost ~70 million. It was affordable.
I think that implementing the limited implant drops we see in the loyalty point system, while not giving us PvPers boosters (or even the smuggling ships and supplies necessary to complete the 10k loyalty point offers!) was very shortsighted.
I fail to see any reason why skill training time should be penalized for people who are trying to rid the universe of pirate scum.