The gates at the terminals matches the documentation the scenery comes with, which are updated to when it came out in 2023.
A scenery it not sold as a subscription like the charts you are using to know the real airport has been updated in the meantime, but it's rather a snapshot in time when the scenery came out, or when it was updated last.
If you wanted a lifetime updates to cover real the changes in the airport, we would have to start selling airports with a subscription, like charts. With the difference that, while charts only require paying a license to a chart supplier like jeppesen, that would already made those charts updates anyway, an airport must custom made on purpose, so an hypotecal subscription might be even more expensive than charts.
That's why the airport is supplied with charts which were current when the scenery was made, so it can be used with those.
