if you want to tow something more substantial than a bicycle maybe the tesla is not the appropriate vehicle for you
Why would it not be a good idea with a tow hitch for the Model S, just like there is one for the Model X?
Compared to other cars with a tow hitch, both the S and the X are heavy with a low center of gravity and have lots of power, so no problem there(*).
So what if it seriously reduces the range (maybe because the S by itself has such a low drag coefficient)?
Maybe I just want to haul my gardening waste to the recycling center on the other side of the town once a month and once in a while drive to the next town to pick up a washing machine or something like that.
In my Audi I can seat five people, put two bicycles on the roof and three on a tow hitch mounted rack, so five people can drive to some place and go cycling there. I don't see why a Model S owner should worse off than an Audi owner.
Further, any car with rear parking sensors will have their function impacted by attaching something to the tow hitch. While it may make the driving somewhat more difficult, it does not actually prevent people from driving safely, as wittnessed by the fact that this practice is indeed legal in your typical, sane jurisdiction. So that argument from Tesla appears specious to me.
Good idea with the petition, I signed it.
(*) Actually, in some jurisdictions the standard driver's license allows you to drive a vehicle + trailer with a total weight not exceeding 3500 kg. So a really heavy vehicle can put a limit on how much you can legally tow...