Poker Did I Make a Mistake with 3 Players Left Before Cashing

PokerStars - 1500/3000 Ante 375 NL - Holdem - 9 players
Hand converted by Holdem Manager 3

CO: 43,694 (14.6 bb)
BTN: 23,668 (7.9 bb)
Hero (SB): 43,095 (14.4 bb)
BB: 55,678 (18.6 bb)
UTG: 65,163 (21.7 bb)
UTG+1: 52,973 (17.7 bb)
MP: 46,432 (15.5 bb)
MP+1: 36,270 (12.1 bb)
MP+2: 13,027 (4.3 bb)

9 players post ante of 375, Hero posts SB 1,500, BB posts 3,000

Pre Flop: (pot: 7,875) Hero has Q A
7 folds, Hero raises to 7,500, BB raises to 55,303 and is all-in, Hero calls 35,220 and is all-in

Flop: (88,815, 2 players) 9 8 8

Turn: (88,815, 2 players) 5

River: (88,815, 2 players) 7

Results: 88,815 pot (0 rake)
Final Board: 9 8 8 5 7

Hero shows Q A : (One Pair, Eights)
(Pre 65%, Flop 2%, Turn 0%)

BB shows 8 K : (Three of a Kind, Eights)
(Pre 35%, Flop 98%, Turn 100%)

BB wins 88,815

Source.