I argued on several occasions that the issue went beyond the number of plugs, as you've pointed out in your second point. It's difficult to have an efficient or reliable network when they're owned by multiple companies, placed in a fashion that benefits each companies planned roll out, and when there is only one plug per unit.
Of course, there is also fact that most of the CCS stations aren't actually placed in a way that benefits BEVs with range of 200+ miles.
Until last month, there were no EVs that could benefit from 100 mile spacing on non-proprietary charge sites or accept over 50 kW.
We are now looking at what had to change to get the 2012 Model S to be transcontinental, except in a much more complex fashion.
If an auto mfr follows a defined association standard such as CHAdeMO or CCS, they need it to be compatible with all existing and future brands and models of cars, and all existing and future charging equipment suppliers.
There are only 2 possible fixes for this.
1) Time - Standards become more robust over time. Developer's toolkits improve, poor software/hardware suppliers fall off the earth.
2) Every company go 100% locked proprietary. This is an immediate fix for their cars, but is actually a terrible solution with the potential of slowing wide acceptance of long range EVs.
I do get a kick out of folk who argue that ICE engines use 7 grades of gasoline and 6 grades of diesel in the US. They just seem to forget that ANY gasoline car can run ANY kind of gasoline until the right kind is found (except E85 which is rare), but even still, E85 can run in some modern cars short distances in closed loop. Yes Virginia, you can run unleaded 87 octane w/ethanol in a 1970 11.25:1 Big Block that requires 94 octane of leaded pure gasoline with no ethanol. You just limp along at 1/4 throttle until you get somewhere that has premium and sells additives.
EVs are a little different. There is only one kind of 'fuel' everything can use, which is J1772 AC (adapters for some). Virtually everybody does >90% of their charging at home or work (many 100%), but remote locations must EXACTLY match their car, and have over 3 times the equipment to service the same volume as a liquid fuel station requires.