Why not? It's a free country, or at least it's supposed to be. Consider the fact that the term limit was not originally a part of the Constitution, and that the 22nd Amendment was passed due to great effort by the Republicans because of FDR's tenure in the office.
Not that I want to see Clinton as President again. and I favor retaining the 2-term limitation. But it's kind of hypocritical to condemn partisan politicing when it's object is to undo the result of partisan politicing that was itself undertaken to change the Constitution to meet a given party's needs in the first place.
Interesting how the 22nd amendment specifically did not apply to the president currently holding office when it was adopted (Truman). I bet Clinton would oppose any restricition applying repeal of the 22nd amendment only to future presidents who had not been elected prior to its repeal.