I think it can be.
Also, I don't like the idea of Barry's dad coincidentally being a speedster. Or if it's not a coincidence and he had some part in Barry gaining powers. That's actually worse.
The moment Barry's lab accident stops being an accident (even with the Eobard link), the show will have lost me.
That's some Amazing Spider-Man 1/2 Richard Parker "Untold Story" shit. No thanks.
How is Barry's dad coincidentally being The Flash a coincidence? We already know he was The Flash in another universe, the 1990 show is canon now.