That's my feeling. Unless someone with one of the new VLJs (very light jets) would come, SP can't have jet airliners, or Tropic or Maya would be doing it.
However, if one has the financial ability to fly their King Air, 402, or something similar, and they can pay the Customs and Immigration people to clear them on SP, why not?
I am sure there are those would would prefer to fly to SP with Tropic or Maya in a Cavavan rather than take two flights to save time and, maybe a few dollars too. Just a thought!