Two ALLINS late in MTT...Bad Fold w/ Pockets?

[FiReSiStAnT]

My read on this was almost perfect. I put the short stack on a weaker hand and suspected that both opponents would be holding an ace. Is this a bad fold considering I have no strong reads besides knowing that short stack is desperate?
PokerStars No-Limit Hold'em Tourney, Big Blind is t150 (7 handed) converter

BB (t2063)
UTG (t810)
MP1 (t861)
MP2 (t3959)
CO (t2145)
Button (t1750)
Hero (t5788)

Preflop: Hero is SB with 8[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP2 raises to t3959</font>, <font color="#666666">1 fold</font>, Button calls t1750 (All-In), <font color="#666666">2 folds</font>.

Flop: (t5934) 9[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Turn: (t5934) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

River: (t5934) Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: t5934

I would have won....if there was a way of KNOWING that my oppnents both shared an ACE should I had defiantly called?