ICE is dead, and none of the developments make it to road cars anyway. Meanwhile, battery/EV tech needs all the development it can get and F1’s have been frozen for years.
Make F1 road relevant again, not just aerospace on bubble gum tires. Let teams compete on the tech that actually matters to the motoring world.
(Additional reply) According to an interview with an DTM representative, car makers contacted them to pave a path for electrified cars (DTM is currently GT3-based).