The orginal French military's requirements were that the arm should be reasonably compact, with at least 10 rounds, a magazine disconnect device, an external hammer, a positive safety, field stripable and easy to maintain. It had to be accurate upto 50 meters. Caliber had to be 9mm or larger.
JMB built a gun with a locked breech design was selected for further development and testing. It did have a striker, with a 16 round double stack mag. This was the starting point for Saive. He incorporated a lot of the elements of the 1911.
It would have been interesting to see what JMB would have ended up with. In many ways Saive simply went with what works. Much of what I love about the BHP is the feel in the hand, its size, shape and weight characteristic. All of these are Saive not JMB's doing. IMHO.
The pistol was never adopted by the French but the Belgium army adopted it in 1935.
PS the beauty of the Glock 17 design goes well beyond the striker aspect of the design. I am not a Glock fan but it is the simplicity of Gastons design which makes is a thing of beauty. IMHO