Welcome, and thanks for your comment.
I assume you are referring to the kind of situation described in this article from Australia?
I do not know a single thing about any trademark actions involving Virgin except what I read in the newspapers and online.
However, I can comment in general on trademark enforcement issues.
Do companies sometimes take a hard line on enforcing their trademark rights? Yes, they do sometimes.
However, it's a fine line they have to balance.
You see, if they are too lax and don't enforce their trademarks, what they tend to get are imitators. Imitators will push the envelope in their efforts to ride the coattails of existing brands, deliberately trying to convey the impression in consumers' minds that they are associated with the brand name, when they are not.
Remember, these situations rarely are black and white. The trademark owner is not 100% in the right, 100% of the time. And the smaller companies are not 100% in the right, 100% of the time.
That's why I am glad we have courts, to sort through the circumstances and reach just decisions.