There doesn't even seem to be a conflict between the two packages as long as /usr/bin is on a case sensitive filesystem. Still, it's unfortunate. Looks like dwm-tools/suckless-tools has had a /usr/bin/swarp since at least 2012, i.e. before #671477 was closed.
Name clashes are not that uncommon; e.g., the MESA of mesa.sourceforge.net is not the well-known OpenGL implementation. I have a (private, for licensing reasons) debianization of Lupton and Monger's SM and had to rename it to sm-plot.