With all due respect Lear60fellow you haven't a clue what you're talking about.
you´ve already beaten murphy´s once today, then twice with that alternate system not working at all and you fly over the atlantic where murphy´s is most expected to come again (it did at the end)
The ALTN GEAR extension malfunction wouldn't have manifested itself until the crew actioned the deferred items in the QRH (CTR HYD SYS PRESS) [if in fact this was the root cause] so your point is moot.
With this hyd failure (767) ETOPS is not affected (in my experience).
Great landing for the guys, I wish I could do one like that
Honestly, you wish you could "do one like that"....Back to your computer and leave the conjecture to those a little more informed....