Yep – the double touch rule now refers to catching the disc.
13.2.5. in attempting a pass, the thrower catches the disc after release prior to the disc being
contacted by another player (a “double touch”);
The other rule that comes close to describing this situation is:
18.2.5.6. a player purposefully bobbles, fumbles or delays the disc to themselves in order to
move in any direction
but this also doesn’t make it a turnover because a) this rule only describes travels, not turnovers, and b) they are not tapping it to themselves anyway.
The name ‘double touch’ is now a misnomer – there was a time under previous rules that touching your own pass was a turnover, but now only catching it is.