I have an updated one (last December) it's virtually identical.
As far as distrusting it, there's been a lot of things happen with this property. Including a road that may or may not have been deeded to the county at one point that is no longer in use. It's hard to recreate the history. The main reason I was double checking it is because there are very slight differences in what is on the deed and what is on various surveys but everything is extremely close to that needed 10 plus acres. At one point it was a 10.11 acre property. Not sure where that square footage disappeared to.
In the old days they pulled chain for measuring using plumb bobs for leveling going up or down slopes so accuracy really depended on how good the crew was. Showing a change of that amount would be pretty acceptable depending on how old the plat was showing 10.11.
As far as the road goes that would take some digging at the courthouse looking through old deeds and trying to figure out what happened.
Hopefully a licensed surveyor comes along and chimes in. I believe we have a few on here.

