I'm not sure that 100%, broadcasters have a big say in the product they think people will watch, at very least if they dont get the format they want they will offer less money
I don't think that is the case with SA and Supersport though. Supersport has a monopoly on sport in Southern Africa, as our Public Broadcaster, the SABC is bankrupt. The SABC used to air only Tests, which they got from Supersport, and it was never live broadcasts, always delayed screenings of about an hour or 2 after the match started.
Supersport doesn't have a board member at SARU, and does not take part in the decisions or voting. That is up to the 14 local unions and their representatives.
...except the lions made the final in 2016, 2017 and 2018....
indeed. But that is just on part of the issue. before that, they had a year sabbatical from Super Rugby. and during that tenure, they had Swys De Bruin as their coach, who then became the Springboks assistant coach, and they had stars like Malcolm Marx, Faf de Klerk, Franco Mostert, Aphiwe Dyanthi, Ruan Combrink, Warren Whiteley, Jaco Kriel, Lionel Mapoe and Rohan Janse van Rensburg in their team.
Only Jaco Kriel is now available for them along with Elton Jantjies.
They also didn't have a great 2019 or a 2020 season, and that will count against them, while the Bulls were the leading SA team in 2019 and the Sharks in 2020.
The Stormers, albeit have their own internal issues. They moved now to the Cape Town Stadium where the 7's tournament is also held yearly. Plus, Cape Town is a major tourist city, and always draw the crowds, and it will be even more so because the Cape Town stadium is close to the tourist hub of the city.
The same can be said about the Sharks, and the great weather in KZN always ensures bums in seats, as well as it's the only stadium in SA where you can still have a beer inside the venue.
The Bulls, well they are based in the Capital city. Have major financial backing, by guys who are politically connected and will throw their weight around to ensure their investment grows. Plus the 3 Super Rugby ***les plays a big part too. And they signed some Springboks during lockdown, to ensure they have prestige in their team.
Based on that, the Lions are on the bottom of the food chain.