I have no experience with goose eggs either, but I think I would pip the eggs too. I don't see how it could hurt and might save their life. I am terrible at waiting though, so take it for what it is worth!
Awww, poor little ones must be shy! Try peeping to them gently to coax them out!!
If that don't work, try some loud ROCK & ROLL music, maybe it will wake them up!!