Our oven circa 2002, can have pilot lit when the knob is simply turned to "Pilot" but it takes a number of tries. If I order up an oven temperature, the pilot lights, flared up to light the burner, right away. I still have to get down there but that's what I do.
I've read the threads on this, and if I WERE to do an oven ignitor, it would NOT be tied to the stovetop igniter.
Why? Well, Oven Pilot was lit but went out. This has happened to me. Pilot does not have a thermocouple so LPG will continue to flow into the oven. Small amount, but oven could be flooded with LPG. Could just blow the door off like Mex said.