I don't know, Sailing could actually be correct. Depends on some assumptions I suppose.
Its pretty hard to interpret that slide that shows mainline growing.
Its got a title of "Domestic Fleet Count".
That slide does show mainline growing but I don't know if any widebodies or ETOPS 757s are included.

Its Presentation slide #19.

We can argue more later but it was pretty clear in Richard's remarks that he intends to keep pulling down capacity. Perhaps the more important thing for us to look at is block hours rather than hull count. They seem pretty proud of their ability to park jets since so many of them are old and paid for.