What makes you think so? All of this applies to people applying for the retirement visa outside of Thailand. It has nothing to do with applying for the retirement visa within Thailand. Those who apply within Thailand and qualify get the O retirement visa. Within Thailand, the O-A visa isn't even offered.
Again, I don't know why anyone would want the O-A visa rather than the O.
The last time I said that, you responded with, "You may want to apply some caution when making these types of public statements about the O-A Visa."
Why would I want to apply caution to that type of public statement? I can't think of any reason at all. If you can, I'd like to know what there is to be cautious about.