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I vote cut and replant. Alternatively you may want to consider some other plants that provide the same function. Valisineria or Sagittaria or Cryptocoryne
A lot of U.S. folks who focus on planted tanks use "Turface" as its cheap, looks sort of natural, and is the "baked clay" discussed above (though will need to do several water changes to get rid of the "dust"). Below is a link to Amazon, but you can probably find it much cheaper at a garden...
In a YouTube video, Wattley discus advises not to feed bloodworms more than once a week as it can lead to hole-in-the-head. Any indication that the same thing happens to apistos?
I think Plan B is ok based on what Mike has suggested in the past on community tanks. Maybe start with Plan B and if you notice one male being overly aggressive than use the divider for that one?