A full 90° bank in a transport aircraft? Not on my life. Not without a full understanding of a given aircraft's inertia, control response, rudder effectiveness, W&B etc.
But - see the note in the procedure posted by
barrow
NOTE: Continuous banking turns will help alleviate excessive pitch up tendencies.
Some bank will A) spill some excessive pitch-up into turning moment, and B) turn the VS and rudder into an angled "half-ruddervator" as in a fork-tailed Bonanza, allowing some minor pitch adjustment via the rudder pedals (at the cost of a slip or skip).
It will require fine judgement if one is already in a near-stall attitude, since the banked turn will increase effective weight (G forces). Conversely, being able to input partial "bottom-rudder" with the pedals may help reduce AoA.
And it's still only a stopgap until the rest of the procedure can be completed successfully and normal control regained in all axes. One would have only a bit more long-term course control than the DC-10 at Sioux City - flying in circles or steepish S-turns all the way to the runway.