And the report from my superb WN flight was that a similar announcement was made, sans the first class comment! It was worded something to the effect of nobody but a FA was allowed to stand within 10 feet of the cockpit door, and no lines at all allowed elsewhere.
Kinda does make me wonder how on a flight with heavy beverage cart service the person in 20A gets the 2 people next to them to unbuckle in time to scamper down the aisle to not avoid a line. Or if unsuccessful, the line left on the way back could be of a slightly different nature!
My kids are all grown now, but I'm kinda curious how you explain to a 4 yr old who wants to tell you they need to go potty that they cannot cuz they're not close to the LAV? And we spent one whole flight in the LAV with a toddler throwing a hissy fit, and the entire flight including FA's were quite good with it!! Even let us stay there during landing!
It's a strange & new world we live in.......