this can be critical in avoiding a level bust if the GA level off altitude is low.
Really?please explain.
HOWEVER in an airline where the instructors and pilots are not all knuckledraggers Mr Boeing is more than happy for de-selection if adequately instructed and understood.
I agree,the mode must be understood.
One thing to bare in mind is as mentionned by Denti,in gusty conditions,the 1.3 vs may engage the AT into Mcp speed above VREF.
The mcp speed opens at wrong speed(higher) and pilot either has to switch off the AT or reset the speed and rearm it,the latter is tricky.
Also,the low speed protection is only working if the aircraft altitude is below the set MCP altitude.