A raid into and out of Syria no more constitutes a campaign involving boots on the ground in Syria than our raid to kill Bin Laden represented an attempted replacement of the government of that country.
But, as usual, you have started with your conclusion, and worked backwards. And, as usual, been schooled for your efforts.
Good on the SOF involved - long-range raids like that are inherently dangerous, complex affairs, which they apparently pulled off without a hitch. SOCOM is earning it's budget increase. And a man who deserved to die is dead (it might have been handier if he was captured, but not everyone comes so agreeably), and ISIL will have to replace him.
Unfortunately, they probably can. ISIL is old AQI, and they probably learned well the importance of maintaining a depth of leaders able to quickly step into any billet. Less of a degradation than a (limited) IO victory (now he's a martyr).
There are probably only a couple of individuals in ISIL that we can kill that would actually have significant effects.