Lets be clear on some terms:
In-Water Recompression = A treatment method for diagnosed/symptomatic DCI victims, requiring extensive pre-planning, logistical support and expert medical/diving supervision.
Missed Decompression = A pre-formulated response, taught on technical diving courses, to minimize risk of DCI, should the diver otherwise miss planned and mandatory decompression stops on ascent.
Safety Stop = A voluntary/optional extended pause at shallow de-saturation depth, to enable additional off-gassing and further reduce DCI risk, before surfacing from a dive.
What the OP suggests is; in no way, shape or form, 'in-water recompression'.
On a dive where no mandatory, staged decompression has been planned, then missed decompression procedures are largely irrelevant. You can't adopt a calculated response for missed deco, unless you have calculated the deco in the first place. That said, even on a recreational dive, with no scheduled or mandatory stops - the ascent rate itself is a calculated form of deco. Exceeding an ascent rate is, arguably, 'missed deco'.
Where no formal stops are required, the 'standard' response (as adopted by many dive computers) is to apply a 'mandatory' safety stop for instances where the ascent rate has been substantially violated. By switching the emphasis of the stop from 'voluntary' to 'mandatory' it essentially becomes a deco stop.
Re-descent following an accelerated ascent sounds very risky to me. If the rapid ascent was significant, then there is good chance that bubbles have already started to form. Re-descending will initially compress those bubbles - thus allowing them to migrate within the body. Ascending once those bubbles have migrated offers a significantly higher risk of DCI.
In order to 'achieve' some resolution, the diver would have to re-descend and then simultaneously de-saturate the bubbles at depth. This won't happen, because the diver is on-gassing at depth, not off-gassing. The existing bubbles can attract more volume from the additionally saturated nitrogen - causing a more severe problem on eventual ascent.
Using nitrox will reduce the absorption of nitrogen, at any given depth, but it will not reverse it. The same issue with additional saturation at depth remains.
The important issue to understand is that re-descent (increased ambient pressure) compresses bubbles. Compressing a bubble is not the same as dissolving a bubble. Desent, in itself, would relieve DCI symptoms, and thus prevent/minimize physical injury, but wouldn't resolve the issue. If DCI symptoms are not presented, then descent is utterly unnecessary.
The focus, on non-symptomatic divers, needs only to be on de-saturation. Descending is never a solution for de-saturation.