Why wasn't Judea not turned into a client kingdom?

Judea was given a sort of hybrid treatment for awhile starting under Claudius when the heirs of Herod (Herod Agrippa and his son) were allowed to reign as kings. But it wasn't given the kind of autonomy of other client kingdoms. It was still a province in all meaningful aspects.

Judea was important to Rome because of its access to Egypt by land and sea. Egypt was Rome's most important province because it is where a large percent of the grain that fed the empire was grown. So Judea mattered due to proximity. Judea was also a crucial border with the Parthian (later Persian) empire. And they couldn't trust that Judea would remain loyal as a client kingdom. For example, the kingdom of Armenia was another border with the Parthian empire. And it was a constant tug of war between the two empires. With noblemen and kings of Armenia trying to play one off the other. Judea had a history of rebellion under Rome. Why would they be loyal as a client kingdom if they could get a better deal from the Parthians?

It is also absolutely true that Rome, at this point, wasn't about to reward rebellion. And traditionally Rome did not give away provinces once won. The exception was Hadrian's quickly shedding some of Trajan's gains in Armenia but that was newly acquired. And it was still a big deal to some. Generally the empire was meant to be as it was under Augustus, which included Judea. So for them to just abandon a longtime province would be hard to imagine. However, Hadrian was a very practical guy. And he didn't stand on precedent as the only reason to do things. So, maybe, if Judea had been somewhere else he would have considered it. But nothing that close to Egypt was negotiable. Certainly not a client kingdom that could begin intrigue with Parthia without a Roman governor to stomp it out immediately. However I doubt he'd ever truly have let it go as a reward for rebellion. His action (to remove all historic associations) was very Roman.