Comparing the new budget to the old one...
Budget Decreases:
Food - It would seem this has been reduced by about $300. Might have something to do with schedule changes related to dropping Neutral Zone Studios.
Travel and Lodging - He's reduced this by about $700. I'm guessing he's not renting the car anymore, on account of dropping Neutral Zone Studios as a filming location. He may also have convinced Alec to let one of his directors stay in a spare room, although it's hard to tell by the articles.
Studio Rental - Reduced by $200, on account of switching to Glen Wolfe's sickbay set.
Uniform Turtlenecks - Lane saved $350 by switching to mock turtlenecks. (This will probably be cooler for the actors as well, because they'll be wearing few layers of clothing.)
Budget Increases:
Production Insurance - $2,000. This is easily the largest reason for the budget increase, and it's exclusion seems like an oversight in the original budget more than anything else.
Contengency ("What could possibly go wrong?") - Increased by $200. This seems to be at the advice of his directors.
Service Fee - The crowdfunding service fee is percentage-based, so because the budget overall has increased, the fee increases proportionally by $50. Make sense, and compared to the rest of the budget, this is pocket change.
Conclusion:
Given that he added $2,200 for insurance and contingency, and the increase in budget is only $700, I don't see any unreasonable changes here. Whatever you'd question in the new budget was already in the old one. Nothing to see here.