"in fact, the last subsidence of same is usually dated to the era from some 11500 to 10500 years ago...this is similar to the end of the Ice Age, in conventional chronology..." Yes, I've considered this for some time now. I'm intrigued by their assumed date and possible asteroid impact around the 1200BC date. The worldwide tree ring data shows a terrible incident in 1159BC and dendrochronoligist Mike Baillie (and others) had already proposed an asteroid or comet impact as a possible culprit.
Velikovsky and others have suggested that the 1159 BC event may be related to the Biblical story of the sun going back in the sky for Yehoshua bin Nun (Joshua)...or other unusual prodigies during the Israelite Judges' time, while they were taking over and settling Canaan...
but again, this would having nothing to do with Atlantis, which had met its final destiny over 7,000 years before Joshua's time...