[ Disclaimer ] Don’t get me wrong : I really like KiCad and do my best to promote it around me.
Besides this, according to what I read, there won’t be any updates after 5.1 until v6 which shouln’t be available until at least one or two years.
As there probably won’t be “usable v6 nightly” either before a long time, we will be stuck with 5.1 for a long period. It means that several current “low/medium priority” bugs / wishes (tracker vocabulary) won’t be addressed until then (if ever). There are chances that the 5.1 release will also bring many additional bug / wish reports on its own.
I fully understand that dvpt time and effort are limited by the nature of the project, but maybe it might be desirable for v5 to continue to evolve alongside v6 dvpt (especially regarding pcbnew because the v6 effort will be more on the schematics + symbol libs), at least until v6 nightlies are usable ?