There is no goldrush. While we're at it, what makes "Rocky Hollow" a Rocky Hollow doesn't really exist either. I also don't see you complaining about MDMC in the same main street colour scheme either.
See, some of these are mistakes, and really basic, stupid ones. Some are nitpicks, and some are just 'what else do you want them to do?'
I'd suggest that these maps were probably rushed through when certain rides were removed, because it was viewed as better to have an error prone map than to have a whole bunch of closed rides still listed on the accurate one.
And there was probably plans to have a fresh new one debut with the new coaster, so why spend a lot having someone fix up the old map when the whole park is going to look different in a few months...