I agree! At least I think so!
Actually Schleich made the mold for the large house already in 1976 so they probably got the license back already then.
I think everything has to do with the movie shown in the benelux-countries then, La Flûte à six schtroumpfs (an adaptation of the original "Johan and Peewit" story). And it says that Stuart R Ross saw the smurffigurines when he was on holiday in Belgium in 1976. After this he contacted Dupuis and Peyo. So either Schleich already had smurfs sold in belgium then or they used the Bullysmurfs??? But I think Bully was way to small to distribute many smurfs then and only made smurfs for Germany then.
So my guess would be that BP wanted smurfs first in Holland for their service stations. That is also what is written on the BP site. In 1976 maybe both Bully and Schleich could have provided the smurfs for Belgium and Holland. That is actually no problem since it is actually Peyo owning the smurfs and he then had both those companies making smurfs for him and he could have used both. So the torch and coin-molds could have been made already then also.
But the main thing here is that when BP wanted to go worldwide with their smurf promotion( UK, South Africa, Australia etc) and also Stuart R Ross came and wanted to sell them in US( everything seems to have been happening around 1976/77) the Bully company was way to small for beeing able to manufacture those amount of smurfs. So Peyo then changed and wanted Schleich to make the smurfs again. Also this is probably the exact time, peyo describes in his book, when Peyo asks Dupuis if he wants to be part of making and selling these smurf-toys. But Dupuis desided just to stick with the comics. So after this Peyo had the sole rights for these figurines also!
So as said in the headline. The years around 1977 were the years when "everything" changed!!!