Unfortunately, this scenery has been practically abandoned. It is still updated for compatibility but not much else. RW, numerous changes have been made - including multiple new hangars, an extended runway, modified taxiway configurations, a new terminal that opened today, and I could go on - which are not reflected in the FSDT scenery.
Another well-known developer was briefly developing LAX but AFAIK, that project has been abandoned.
Hopefully someone will take over soon!