Originally Posted by psylockolussus
Who knows if the older Prof X and the older Magneto will mention this "Sentinel" program in DOFP, that they existed in the 70s but somewhere disappeared in the 80s/90s/00s for unknown reasons.
And the best excuse for the Sentinels not showing up in the original trilogy is the Sentinels weren't finished yet. Its so easy to make-up a story for that rather than confusing the viewers by telling us that the original trilogy/First Class don't share the same timeline, that the other one is an alternate universe.
Again, you are ignoring
all the viral site stuff (have you read it?). They state the Sentinels have been in service since 1973 (so they were
finished, one even present at Reagan's inauguration) and they are still
in service up until the date the site is set in (2020 plus). Zero mention of them ever being out of service for a convenient 13 years while the OT through to the Wolverine took place.
So either the viral site is accurate information for Trask & the Sentinels history for this film, or its all a misleading cheat.