I think your analysis also gets an "incomplete" because I think you could be right, but it depends...
It depends on who is going to step up and be the next Iran and funnel money, arms, protection and leadership to the next generation of Palestine's Hamas that you think is inevitable to crop up?
While Israel might have done a terrible job calculating the long-term costs (TBD), I think they tried to mitigate long term consequences. Which is to say the dismantling of it's enemies who allowed Hamas to be as powerful as they got to be as a terrorist group for the OG 10/7 two years ago, in the attacks in Syria, Iran, and abroad. They were trying to eliminate the threat wholly (which, grossly, looks like it included eliminating Palestine completely) and seemed to have the mindset of take the axe to the roots and not let it grow back.
Obviously they've failed so what's next? Did they get enough of the roots for the weeds to be managable or is it all Hamas-redux all the way down? TBD, WIP, Incomplete.