Yes sure it works without dsdt too but your system will run much better with a dsdt.
There are some fixes which are only possible with dsdt.

The other thing is you can inject your devices (like Graphicscard or networkcard and so on....) instead of using a kext or bootloader.

For example: I need no special kext or a special bootloader because i fixed everthing with dsdt.

So if you want to optimize your system it would be good to delve into it.