The thing is that you can't just enact regulations that take place immediately. You can't just have the government stop doing its job because they are going to be leaving soon and if the next president wants to stop the regulations they can
you can't just enact regulations that take place immediately
For example, look at the huge volume of new regualtions that weren't even published until after the 2000 and 2016 elections (the final 8 weeks of 8-year terms). If you're waiting until the final 2% of your term to make new regulations that only affect your successor, those regs warrant a critical eye.
Regulations timed to not start until after the Executive leaves office shouldn't be allowed in the first place.