So again, you are just making arguments (we have seen these arguments many times here, so we're mostly interested in new information.
The grants for stations to have CCS primarily would be used on new stations, unless they will provide significant money for retrofit. Such grants tend to cover something like 30% of your station cost, which is a lot of money on a new station, but a tiny amount on just adding a cable. As discussed, Tesla already has hardware and software in their units to talk the CCS protocols. However, if Tesla can take a station they spent $500,000 installing, and add CCS cables to it for $20,000 and collect a $150K grant for having brought on 12 new CCS stations, they will be interested in that, especially at stations that don't fill up. (Their busiest stations probably would not add CCS support at first until expanded.)
As yet Tesla has expressed the intent to support CCS cars, but has not said how and at how many stations, but they have made mention of both stations with CCS cables, and adapters, both for CCS drivers, or to put at stations. No firm word on the details. It is likely that they will charge CCS drivers more than they charge Tesla drivers, though that is hard to do at the new prices. None of the grants forbid sites from giving better prices and service to "members" and in fact that is EA's standard procedure.