No requirement to modify the normal course of the flight if the weather degrades?

[CaptainSouth]

ETOP’s is a pre flight planning ruleset.
in flight prior to EEP you must check weathers all ok for en route airports. Once past EEP, no change to routing required if enroute alternate goes bad. Why?
Because you are not going to enroute alternate. You are going to destination! Enroute alternate is just in case.