@SFOTurtle You are right, it was very hard to impossible to make certain road trips. I don't think anyone argues that. I had to go 60 mph from LA all the way to Quartzsite. There was nothing. Now there are 3 more Superchargers just on that route. Going between LA an Vegas has been improved so much with 2 SC in LV and adding Primm and expanding Barstow.
Tesla has done a lot, but they have also sold a lot of car since then. They have sold more cars than they have added Superchargers in the areas where they sold those car. Tesla has done an amazing job covering most major freeways across the US with Superchargers. Coverage is awesome. Unfortunately, very little cars have been sold in the vast majority of areas that are not connected through Superchargers. A year ago I was driving on a very busy freeway through Los Angeles. I counted Teslas for 20 min and saw one about every three minutes. I just did the same the other day. I counted 12 in 10 min. While this is very unscientific, it kind of gives one an idea how many more Teslas are driving around here these days.
I totally agree with you, the Supercharger network is absolutely amazing and the fact that no one else has even attempted to build anything that comes even close make it stand out even more. But that should not be the goal or set the bar. The Superchargers are a marketing and selling tool for Tesla. If they can't keep up with demand, this can quickly backfire. We have seen what happened when more than 20 cars where lines up in Barstow.