Johan
Taag management have changed flight times on most routes to improve connectivity. You can now fly from. JNB/CPT/MPM to LAD and connect on to LIS/OPO/GRU/GIG relatively easily.
The same is not true of HAV and TMS. These destinations do not seem to have yet been tweaked to connect to other international routes.
Mind you a few years ago none of Taag's routes were really timed to connect.