They need to make saving and loading your games easier. setting up everything to save and load a game here is a pain.
You will need to provide more detail on what you mean.
Setting up saving and loading only requires 1 event for saving, and 1 event for loading, with about 3 actions each.
The complexity of your save data is up to you, not the engine. I recommend ensuring your data is stored as a structure variable (with each data point as a child variable) so you only have to save one variable total (the parent structure variable).