And while a "split elevator" condition arising from both pilots pushing/pulling on the yokes against each other may occur in the 757 (see the final report for Egypt Air Flight 990)
Instead of bemoaning people's lack of knowledge you could just respond to my wondering if the 737 systems are indeed supposed to work the same as in the 757.
Just for the record, Egyptair 990 was a B-767-300ER, not a 757.
A lot of 757 and 767 systems are similar but many, especially hydraulics, are significantly different. The two planes were literally designed by two different groups at the same company. Or, so they tell me...