I honestly don't think it is a big deal. It's far preferable to having people sleeping in tents, which this law basically forces an RV dweller to do. It's a horrible law and I hope it gets repealed.
It's presumably already illegal to sleep in tents in residential parking spaces (or, without the owner's permission, on the actual residential property), without even the time-of-day restrictions applicable to this rule, so I don't think it's accurate to say this forces them to sleep in tents.
It forces them to sleep either at different places than LA residential neighborhoods or at different times.