And Rav Ovadia Yosef shlita said they really should be marring polyganously today. Even the Vilna Gaon wanted to reinstate polygany among Ashkenazim.
These 2 Gedolim clearly are/were very concerned about the Shidduch crisis, and very much in touch with reality, and clearly fathomed & understand/understood, that re-institution of Polygamy would work wonders in solving the devastating Shidduch crisis, especially for so many older single women, let alone for many older widows.