Move along, nothing to see here . . . .
That is correct. However, there is a substantial difference between the court's opinion and it's order. The order merely denies or grants relief requested while the opinion explains the legal rationale for the courts order.
That said, many courts will adopt much of the legal argument of the winning side in an opinion. Generally, the court (especially on a landmark decision) will do more than merely cut & paste from one sides brief.
This doesn't necessarily mean the ruling was wrong or the brief incorrect - but does demonstrate intellectual laziness.
Even more so when the judge asks the parties to submit proposed findings and conclusions. The whole purpose of the exercise is that he will then take the document submitted by the party he's decided for and either sign that as his order, or modify it to his liking, which is apparently what happened here. This is a very routine procedure.