I suspect that KSA & GCC (after Trump) initially swallowed the line that regime change would take place shortly after Feb 28 — making life better for all around including Iranians long under the boots of the IRGC.
Didn't happen.
Iran has little capacity to directly retaliate against Israel and the US; so has to target what it can reach: Hormuz and KSA & GCC infrastructure.
We now see KSA & GCC becoming choosy as to what missions they will allow in their airspace as they realize that they will remain stuck dealing with the IRGC that will hit them whenever Israel or the US hits Iran.
Nobody likes being consigned to collateral damage fodder.