https://i.imgur.com/Otq8hYM.pngHere is an example of the distinction and why the difference is important.
If you told people "hey ladder starts Feb 11th at 9am," then people would take off work for that day in anticipation for the reset. Then, imagine their surprise when the ladder does not actually start until the 20th.
The distinction is VERY important.
We have been given ZERO information about the transition between s13 and s14, and more specifically the change between 3.1 and 3.2. Sure, the post could be correct, but until we know that there isn't going to be a waiting period, people who don't account for this are making an idiotic move.