It seemed as if Marland was starting something compelling with Detective Roy Franklin's family. The rift between Roy and his father Leonard because Roy's younger brother was shot and killed by the police coupled with the fact that Roy became a police detective is a story that could play today.
Sadly, with today's soaps, it would likely be seen as risky somehow (soaps today tend to avert their gaze from any hint of a socio-political issue)--maybe it was also deemed too risky back then.
Perhaps P&G wanted to pull the plug on that story, which could be the reason why it didn't progress any further.
In fact, in a weird case of symmetry, Marland also created a similar family dynamic between Jessica Griffin and her family, but the tensions were compounded by social rather than political issues and that also only went so far.
Personally, I thought that Roy's family dynamic was the more compelling but I wonder whether there was resistance from CBS and/or P&G to give a long-term dramatic spotlight to a Black family.
This aspect always struck me as very strange.