The biggest concern in MA, there are many college officials that don't want to have to learn the new rules. Will they work next year?
Do not even get me started
Consider veteran officials who have been doing this a long time but are on the fence about coming back for another year, maybe their kid is playing now, they want to spend time at her games... and then you find out you have to learn a whole new set of rules if you want to keep working? That is going to tip the scales for a LOT of officials - often the most qualified ones, no less.
Consider college officials who enjoy taking HS games whenever they can, but they don't want to do anything that would jeopardize their skill at the college level or harm their careers. Imagine a D3 guy hoping to move up. One accidental whistle for DOF on Saturday has the power to undo YEARS' worth of goodwill. The consequences are even worse for higher-level guys. I know for a fact that more than one of the best officials in the state are leaving the field on Fridays so they don't screw up on Saturdays.
Now, it's true, there are 48 other states where all the college officials handle two rulesets just fine and are perfectly capable of working the game differently on Friday and Saturday. But, those officials gained that "bilingual" expertise over time, not in just one offseason. They moved into their "second language" gradually, with a few scrimmages here and there, part-time schedules for the first year or three. And as they did so, they got to blend in among experienced veterans. Well, there are almost NO Fed veterans in Massachusetts. Except for a handful of guys who have worked in RI for a couple years, and people who relocated from elsewhere in the country, we are ALL rookies, all at once. And we don't get to start slowly with part-time schedules, either. No starting off in the shallow end of the pool.