There's no reason to exaggerate. He played bad. He didn't make the open shots and didn't play very good defense.
That said, as there was no reason to treat him like he's the next Kobe when he scored 28 against Hawks in the regular season, there is now no reason to throw him under the bus right after one bad game.
And I don't think Bradley plays a key part in our offense. That's the reason why I do think Ray would really be a difference. On a night when PP and KG were struggling, there could have been a chance that Ray would take over this game provided he's healthy, of course.
But there's no chance when it's just Bradley. He's not a game winning player. He's a complementary piece, albeit a solid one.