Iconic Diva Jane Birkin Has So Much to Gainsbourg

--I must be illiterate: I don't understand the above italicized text. I'm sure the clause was double-checked before it reached the production server. Can a reader with greater fluency in English explain it to me? Is "Has" a transitive verb now?

It's a pun on the not uncommon phrase "has so much to gain." See?

now I see. The phrase was uncommon to me. Thank you!

bad pun.

"have" is always a transitive verb, BTW