That’s not really how I see it. The case is shocking in that it has revealed that some rights that we thought that we had, cannot be enforced in law.
The US is exploiting a legal loophole in that while the extradition treaty forbids political extraditions, the UK has not incorporated that prohibition into domestic legislation. Therefore the court of first instance approved [in principle] the extradition for a political crime (espionage). However as I understand it, this aspect has not yet been appealed by Assange.
In my opinion, if this case had happened 5 years ago, then under presidency of Hale, Assange would had a decent chance of challenging it in the Supreme Court. However under the presidency of Reed and in the aftermath of the prorogation case, the Supreme Court has become extremely reluctant to deviate from government policy, as they are afraid that the Government will simply abolish the Supreme Court altogether. So I doubt they will stick their neck out for Assange when they didn’t for e.g. Begum or in the recent Rwanda case.