Well look at WRC, lot of engineer an tech but still heroism and still driver skills plays a lot when you see that a wrong tyre choice cost 50s in one stage and that Loeb manage to win MC with a big gap an Ogier was in 5th ahead of many WRC with its S2000.
In race track ofc datas analysis kills the difference between a driver that was feeling the car like senna or prost, but that didn't kills entertaining. Should be the contrary btw because drivers have engineer to solve their lack of feeling. Then ofc it kills pure racing because it is easier but then high df can be a problem but there is a solution, stop building track that are only about df. People always say that it is hard to overtake in f1, well look at old good track as Spa. Driver are always overtaking there! And without drs! So maybe the problem isn't the car tech but track design...(btw same in Le Mans, a lmp have much more df than a f1 due to its ground surface, but Peugeot and Audi have made such a fight, with some move in mulsanne straight but in tight Porsche turn complex aswell).