I think the storage thing is getting blown a little out of proportion. It will definitely take time to bring the airplanes back, but I don’t think it is as big a factor as some are making it out. My airline operates one of the larger fleets of the aircraft and they are for the most part getting powered up every few days and engines run a little less frequently but still often. The procedures for long term storage and removal can and are done without a special team from Boeing.
Even the the article quoted said 80 man hours, so a team of 4 takes 2 days to put an airplane back in service. Even the largest max operator with 34, if you get 3 teams going, has all the aircraft back in service in 3 weeks.
Training is going to be the real issue.