Kitty Hawk also benefitted from being the last conventional carrier SLEPed. She finished hers in 1991. Kennedy never received the full SLEP treatment.
Nor did the AMERICA. It didn't make a bit of sense to SLEP the oldest carrier in the class instead of the newer ones. In 1989 it was already pretty much laid out we were to downsize the Navy. That being the case running our two newest conventions into the ground while at the same time preserving the oldest one of the two classes was foolish and wasted money. They could have been kept as trainers. Actually the JFK went in and out of unofficial reserve status throughout the Clinton years.