I can think of two good reasons why you should flee Linode. It remains to be seen if either are actually true, and until indications say yes, then panic is unwarranted:
1. If it becomes apparent that Linode is far more vulnerable to hacking than other hosting providers. But one hack alone does not prove this.
2. If Linode grossly mishandles the situation. There have been a couple of allegations to that effect so far, but nothing substantial. I don't see any reason to claim that they've done this yet.