If it read "If you are a frequent user of local Superchargers..." it would be fine.
No, it would not. Perhaps if it read "if you are a frequent user of local Superchargers and can or have installed a home charging alternative...", then it would not have a) alienated every non-garaged owner/investor, b) produced uncertainty concerning Tesla's next move as related to local supercharging, and c) created the additional requirement for a clarification to be communicated ASAP.
They did include the helpful reminder to exit the space once charging is complete - and that applies to all who use SCs, regardless of circumstance. Failure to exit immediately is as bad as ICEing from the perspective of the person waiting. This particular point/best practice *should* be periodically emphasized via newsletter distribution.
Castigating non-SC users as frequent local users, and worse, castigating non-garaged owners *who were told specifically during the purchasing process* that unfettered use of local SCs as necessary *is perfectly acceptable* are not good uses for a periodic newsletter.
There was and remains a need for clarification, particularly with regard to the non-garaged, before Elon's comments, after Elon's comments, and especially after this embarrassment of a communication has been sent.
The non-garaged are easy enough to identify in a database, as are garaged owners who choose to not charge at home (the real problem here, along with an undefined solution for livery). However, it does not exactly inspire confidence that Tesla can manage the filtering when they send out a poorly-worded letter to an undefined subset of ownership.
Newsletter sent periodically: Great idea. Thanks.
Reminder to exit the stall immediately once charging is complete: Great idea. Thanks very much. Please keep
doing this.
Failure to clarify that non-garaged owners can continue to use local SCs *as necessary*: Unacceptable.
Failure to clarify that very, very few owners of any type use SCs on a daily basis, and that most of those are commercial/livery: A missed opportunity.