Come on, people, THINK for a minute!
WHAT are these wipes soaking in while they are in the container, before you pull them out and use them?
Purified water, perfume, and soap. Perhaps a little of some type of alcohol.
Did they disintegrate in the container?
No?
Then what makes you imagine that they will somehow magically know that they have been used, and it is now time to fall apart?
When I flushed the Southwind for the first time after purchase, I got about half a dozen of those things out of the black tank. I have no idea how long they had been in the tank, but the coach had been sitting on the dealer's lot for a couple months. Those wipes looked like they had just been removed from the package! "Flushable" or not, I do not believe they should EVER be put into a holding tank, septic tank, or municipal sewer system!
IMO, 500 years from now, somebody will dig up an old landfill, find a wad of those things, and say "WHAT were those people THINKING??"