It doesn’t really make any sense to close SNW for 2-3 months to fix everything at this point in time in my opinion.
It’s probably the most visited section at EU currently so that’s money on the table you’re loosing out on by having it closed.
Of course there are solutions to pretty much anything and they could theoretically work at night to try and Improve what they can.But again I don’t think Universal has started to budget or neither developed a maintenance program for this park yet.