could be a case of daddy buying a seat for his kid (Lance Stroll is a member of the Ferrari Academy, currently racing in Italian F4). The Ferrari ties make the deal quite possible in my opinion, however the kid seems quite fast (currently leading the Championship).
I have always believed that simple is better. So I would go for simple rules (1 rubber compound per race for example, less complicated aerodynamic devices, No DRS etc).
Racing should be racing: you have 22 cars on a starting grid, they race (if they feel that they should change tyres during the race, they can, if not so be it,) and whoever crosses the line first wins.
These complicated rules we have now, can sometimes make racing interesting but they also make it artificial for the knowledgeable fan and complicated for the would-be fans.