I have free SuC for life but want the CCS adapter for when we travel in areas were there are none (SuC), or where they are far away making the drive inefficient, or are just too busy to wait in line. The latter is especially concerning - with them making/selling more and more Teslas, lines are now forming and it is not the 5 minute wait (as at busy gas station pumps) but 30 minutes+. With the expansion of 'other' DCFC chargers, being able to charge 'anywhere' fast is becoming more important.
And about your other point - at least in the states I heard the SuC cost is less than competing EV charging stations, so I don't believe it is about losing money. And Tesla has said they were going to open up the chargers to everyone here as they have already started doing in some EA countries. I think they just see this as being low priority, unfortunately...