As I mentioned before, even though this trade looks bad on paper, there's just no way to look at the value of a trade before everything has played out. They could land (by pure luck) a great player with the 28th pick. They could trade RJ's expiring for a great trade down the road, just because it's one year later's than SJax's expiring.
And they didn't pay $11 million for a 28th pick. They received an expiring contract worth $11 million and a 28th pick. They might not be the ones who end up paying RJ's $11 million that year.
Although it doesn't look like it, they still have the opportunity to come out on top.