Sort of. From the article:
"Langhofer also said that a GSA official appointed by Trump in May had assured the transition in June that any request for records from Mueller's office would be referred to the transition's attorneys"
What that sounds like is a new person that just joined the GSA said something to Trumps team that turned out not to be true. I don't see anything in the article that says the GSA thought a subpoena or warrant was needed though. Can you quote that text?