Outside of Solo the movies are in an amazing place. For me it sucks that the books are pretty mediocre to bad and neither the books or the comics can tell stories that even slightly matter, and the old EU is still superior to the new canon in my opinion, but for the stuff Kennedy directly effects the most, the movies and (probably) the live action TV stuff coming up, she's generally hitting it out of the park.
I never thought we'd get not just good but great SW movies again, and (again, except for Solo) I've really enjoyed the new movies, and I'm really hyped for The Mandalorian and the obi Wan show. So, I'd say that Kathleen Kennedy is doing a great job.
The only person that ever really "ruined" Star Wars to any extent was George Lucas, and he's long gone.