Is SNGPT ever wrong?

[kinger]

I made this push because I thought it would be +EV in SNGPT and it was. In SNGPT it is +.5 EV against average opponents and my opponents were very typical. In SNGPT if I make both the blinds loose and the other two average, then it is still +.3 EV

But after thinking about it, I have a hard time believing this hand is EV with 4 people left to act behind me. Is it possible that SNGPT has errors in it? Or is this in fact +EV?

thanks!
kinger

Stack sizes:
Hero: $4595
CO: $3390
Button: $3745
SB: $1595
BB: $1675

300/600

Pre-flop: (5 players) Hero is UTG with 3h; Td;
Hero raises all-in $4595, 3 folds, BB calls all-in $1675.
Uncalled bets: $2320 returned to Hero.


Flop: Kc; Kd; 6d; ($2875, 0 player + 2 all-in - Main pot: $4850)



Turn: 2c; ($2875, 0 player + 2 all-in - Main pot: $4850)



River: 9h; ($2875, 0 player + 2 all-in - Main pot: $4850)



Results:
Final pot: $2875
BB shows Qc Ah
Hero shows 3h Td