Pro cup at Spa24 hours

I recently studied entry lists for previous years and found out that number of Pro cup cars has been reduced quite a lot like we used to have more pro wild card crews like porshes, Lamborghinis etc. And i would say it's important for biggest GT3 race in the world to have a lot of top crews, because 24h race with so little amount of cars which have a shot to win make race a bit more predictable and boring, this year we have only 18 pro cars and 9 gold which can fight for the top 10 but not for the win. Is there a way SRO can have more pro cars? Like the races are great, like really great, i watched every race since 2020 and they always were really exciting (2021 and 2025 especially) but still it raises some concerns about state of the championship and the whole event.