pawn stars

In this TV show, the idiom "going off on a tangent" was used in the following context.
Normally, the employees at the pawn shop refrain from buying boats because they are difficult to sell. Still if they all agree that a particular boat is a good buy they might purchase it. On one occasion, one of their employees bought a boat without consulting any of his colleagues, which didn't sit well with the owner. He said "We can buy a boat if it's a joint effort but not you going off on a tangent like that".

I know that "going off on a tangent" means "to digress". I can understand that he meant "to deviate form our normal way of doing business" so my question is
Is the use of the phrase in the passage above correct and natural?