Just saw it on NBA TV.
There were some looks exchanged between KG and Rondo when Washburn asked his question about the last 35 games. But, I didn't get the sense that KG's pointed response was directed specifically to Washburn himself, but to everyone who's writing that KG might be washed up or over the hill ("I don't read y'all's stuff, but it gets back to me.").
The question about Hollins and other bench players was directed to both KG and Rondo. KG looked to me like he wanted to give Rondo a chance to speak, and Rondo took the opportunity to confirm that Hollins, MP, and everyone stepped it up ("every possession matters"). Rondo specifically lauded the fact that it was Hollins who got the Celtics the "extra possession" that led to KG's big basket.