Yes it is. So, it seems that the Obama administration is trying a new marketing strategy with Biden, just letting Biden be Biden:

“The president and the entire team close to him has encouraged me not to try all of a sudden to be a different Joe Biden than I was for the past 36 years,” Biden told Stahl. “Sometimes maybe I shouldn’t be as straightforward as I am. …I’m not sitting on it. I decided I just – it’s who I am.”
After trying to muzzle the man often ridiculed for his loose lips, the White House now calls his – shall we say exuberance – an asset. They call it “truth telling.”

That’s probably a good idea since it doesn’t seem possible to muzzle him and it’s easy to dismiss his comments as just one more example of his inability to control his tongue.

ESV James 3:5 So also the tongue is a small member, yet it boasts of great things. How great a forest is set ablaze by such a small fire!

(via)