I believe some of the charges have already been dropped. In any event, the case is more complicated than appeared at first sight. From my recollection, there was an allegation that the two women involved were in collusion with each other in order to discredit Assange.
I can quite understand Assange being unwilling to go to Sweden since he and others suspected he would then be extradited to the USA.
Good Morning Sunday 23rd August 2926
How to get help putting suitcase on the conveyor belt at airport check-in

I absolutely agree that a ridiculous amount of money has been spent and I can't quite understand why now they've decided to suddenly stop.