In the 70's I did a lot of commercial research into Monobaths.
Have look in old British Journal of Photography Annuals, early 70's, Geoffrey Crawley wrote an article . I must still have it somewhere.
Our research was on monobaths for print processing, but for films would have been only slightly different in formulae. Particularly as the emulsion under test was a Silver Bromide/Iodide composition which we'd evolved and manufactured in-house.
If the formula was balanced correctly results quality wise and longevity were no different to normal processing.