My experience so far has been the Tesla community seems to be comprised of people generally of above-average intelligence - so I still trying to understand why there is confusion about what "Free Supercharging for Life" means.
There is nothing in that contractual obligation Tesla made with me that would suggest I would need to compromise the value of the features of the vehicle I paid for to ease the concerns of the Mr. Musk, or selfishly, of any other Tesla owner. In fact, if my access to free supercharging were to be restricted for any reason other than site congestion, Tesla should have to reimburse me for cost of electricity I need to obtain in it's place. Tesla was not coerced into selling this feature to me and others; in fact, it was heavily used as a marketing tool to help sway folks like me considering a new Tesla into purchasing their vehicles prior to the end of the 4th quarter, 2016, to boost sales numbers for investors. So, in my view, the fact I am willing to charge my vehicle at home, at my expensive, is already a courtesy being extended to Tesla and their obligation.
It wasn't that long ago when folks were in an uproar on this forum and others when Tesla stated they would limit the launch capability of P series vehicles for fear that Tesla would incur additional warranty claims for batteries and motors that were "abused". I didn't recall anyone, whether they owned a P model or not, stating they were in favor of Tesla limiting owners' ability to access a feature they were marketed and sold, or agreeing that utilizing Launch mode, regardless of how often, was an "abuse" of the feature they paid for.
I see no difference in regard to Free Supercharging for Life.