Having travelled many times through AMS with our infant (who is Gold Elite, so we're talking plenty of segments), we found pushchair/stroller gate delivery to be a bit hit and miss. I would say that "most of the time", the stroller has come through.

Since we usually travelled with a "travel system" (car seat that locks into pushchair), even if the stroller didn't come we could put the infant carrier/car seat into one of those luggage trolleys.