Originally Posted by Legion
Essentially Wolverine losing his adamantium claws was one of the things that needed "fixing". Since Wolverine is the time traveler and will not likely be fighting much in the future, there is no other reason for him to have the adamantium other than the fact that Bryan wanted the future version to have adamantium claws and the past version to have bone claws. It works better for the story he wants to tell and isn't going to spend a lot of time trying to reconcile the difference.
Exactly. There's no need to waste what seems to be much needed time on story for something that could be explained away in passing dialogue. Adamantium would clearly be more effective against the Sentinels, so just mention that Mags did it for the good of mutantkind in the war and be done with it.