can any of the omaha heros explain this for me please, am thinking the guy was on a total bluff/knew he was beat, but surely this has to be a call even if you have had 3 of your cards mucked by a dealer?

??
PokerStars Zoom Hand #108584126795: Omaha Pot Limit ($0.25/$0.50) - 2013/12/15 21:27:52 WET [2013/12/15 16:27:52 ET]
Table 'Aquarius Dwarf' 6-max Seat #1 is the button
Seat 1: TorcidaST ($80.72 in chips)
Seat 2: MITS 304 ($163.68 in chips)
Seat 3: O.Canari ($42.29 in chips)
Seat 4: ronald03 ($49.73 in chips)
Seat 5: theboy771 ($59.23 in chips)
Seat 6: mickstery ($60.14 in chips)
MITS 304: posts small blind $0.25
O.Canari: posts big blind $0.50
*** HOLE CARDS ***
Dealt to mickstery [

]
ronald03: folds
theboy771: folds
mickstery: raises $1 to $1.50
TorcidaST: folds
MITS 304: raises $3.50 to $5
O.Canari: calls $4.50
mickstery: calls $3.50
*** FLOP *** [

]
MITS 304: bets $0.50
O.Canari: calls $0.50
mickstery: calls $0.50
*** TURN *** [

] [

]
MITS 304: bets $10.87
O.Canari: calls $10.87
mickstery: folds
*** RIVER *** [

] [

]
MITS 304: bets $25.75
O.Canari: raises $0.17 to $25.92 and is all-in
MITS 304: folds
Uncalled bet ($0.17) returned to O.CanariO.Canari collected $87.24 from pot
O.Canari: doesn't show hand
*** SUMMARY ***
Total pot $89.74 | Rake $2.50
Board [

]