It's a workaround, not a solution. Just a sticking plaster which may exacerbate the problem.
If there were sufficient males wishing to dance with women then that problem wouldn't exist, or even be discussed. I can't envisage many men nowadays embarking on an initial dual-role dance course, although some women might. Obviously, historically, it was a dual-role course with an obvious societal objective, so I don't write it off entirely.
Better to consider the male gender social psychology and what might encourage them to learn to dance. The prospect of meeting prospective partners and relationships has long been overtaken after the GA with rock 'n roll and now easier dating options and lifestyle.
Of course some male-role influencer may find it a good promotion to male bonding, forming relationships, nostalgia, 'real life' as opposed to a virtual world, etc, etc, by dual-role dancing with the prospect of being with 'real' people, e.g. early practicas. Just needs to lose the ballroom stereotypes and come from the slums, not the dancefloor.