Although autogenous bone grafts and sinus lifts are not routinely done, they are necessary in some cases in order to achieve proper implant placements. If the implants are not properly placed, the restorative GP/prosth cannot restore them properly (function and esthetics). You may lose the referrals and get sued. Ive seen a couple of badly placed implant cases (due to lack of bone, poor tx planning etc) that were placed by other GPs, perios, and OS.....they were so bad that none of the GPs/Prosths wanted to touch (or restore) them.
Nope, I dont see this happens in our lifetime. The number of GPs who place implants in their practices is still very small. Three of the seven GPs, whom my wife works for (as an in-house perio), previously took hands-on implant CE courses. These 3 GPs decide not to place implants in their practices because they feel that its easier just to split 50:50 with my wife and they dont have to deal with expensive implant overhead and post op complications such as pain, swelling, and implant failure etc.