Sounds good in theory, but in practice holding blocking cards (even if you hold all of them, as in this case) seems to get me into more trouble than it does lead to clever pot-steals. The problem with thinking AAAA is going to pick up a pot where there's a possible low is that most 23 hands are going to only be sticking around in the pot if they have some reasonable high (two pair, str, etc). It'll probably take multiple pot-sized bets to push a hand like that out of the pot, so you'll be risking quite a lot to win a mediocre sized pot. Might work a couple times, but when it doesn't you'll lose a stack.

But more generally (since AAAA will get dealt to you once every 6.5 million hands on average) relying on the blocking cards in your hand to reduce the chance your opponent can call is asking for trouble. Examples:

Omaha Hi/Lo Pot Limit ($5/$10)
Seat 5: Villain ($1799.85 in chips)
Seat 6: x ($468.60 in chips)
Seat 7: x ($828.25 in chips)
Seat 8: hero ($1735.65 in chips)
hero: posts small blind $5
SENDERDEEP: posts big blind $10
*** HOLE CARDS ***
Dealt to hero [6d Kd Ks 5c]
Villain: raises $25 to $35
x: folds
x: folds
hero: calls $30
SENDERDEEP: folds
*** FLOP *** [Qh Jc 3s]
hero: checks
Villain: bets $78
hero: calls $78
*** TURN *** [Qh Jc 3s] [Ts]
hero: bets $150
Villain: calls $150
*** RIVER *** [Qh Jc 3s Ts] [2d]
hero: bets $450
Villain: calls $450
*** SHOW DOWN ***
hero: shows [6d Kd Ks 5c] (HI: a pair of Kings)
Villain: shows [5s Qd Kc Qc] (HI: three of a kind, Queens) Villain collected $1434 from pot No low hand qualified

$400 PL Omaha Hi/Lo
Seat 2: hero ( $449.20 )
Seat 4: FightinIrish ( $314.70 )
Seat 5: villain ( $217.60 )
villain posts small blind [$2].
hero posts big blind [$4].
** Dealing down cards **
Dealt to hero [ Td Qh Th Ts ]
FightinIrish folds.
villain raises [$6].
hero calls [$4].
** Dealing Flop ** [ Qd, 9d, 8h ]
villain bets [$10].
hero raises [$45.20].
villain calls [$35.20].
** Dealing Turn ** [ 2c ]
villain checks.
hero bets [$105.40].
villain calls [$105.40].
** Dealing River ** [ 9c ]
villain is all-In [$59]
hero folds.
villain does not show cards.
villain wins $375.20