I definitely don't agree with Teslas practices of framing it that way, I'd rather they just show cost of ownership comparisons across a variety of cars. Especially since they can't even meet the demand they currently have, why resort to shady practices?
But only if you arbitrarily include the difference in fuel costs, which makes Tesla look cheaper, and exclude the differences in insurance and maintenance costs, which make Tesla look more expensive.
And of course you have to include full cost, ICE can not run without it, and most people want to drive their car.
Of course these are avg numbers and you have to do it with your personal driving numbers and how long you want to keep the car to get a more detailed picture of the cost.
However overall, pretty much all EV have a significant large part of up front cost to ownership cost so its totally fair to point that out.
That said, Tesla is of course a company and they are pressing this point to aggressive and that is irritating to many of us. The overall point they are making however, is backed up by the data.