I have also heard reports of SHH actually refusing Landing slots to airlines but i am not sure whether this is true or not.
Don't think PLH was ever slot controlled? If an airline is prepared to pay the list fees outlined in the schedule, it's not up to SHH who they do/don't want. The now ex airport manager was very much pro-expansion and pro-Savin the airport, but SHH didn't want it. It's up to the airport manager to decide who does/doesn't land ultimately.
I understand great hate in spotters for SHH but please, no need for "BS rumours" for the sake of damaging a company.