I think the trouble is that people who prefer multiplayer and people who don't have different expectations and requirements. I've seen it a lot in particular with MP games that do both PvE and PvP like ESO, where the latter crowd are constantly "nerf this! nerf that! nerf everything!" in the name of "balance" and whether or not it works for them (and I'm assuming not because the demands for nerfing never stop) each round just seems to make the PvE experience worse.
I recall during OS2's development there were similar choruses of nerf demands and I think the gameplay suffered as a result. No idea whether it improved MP, but I felt it made SP worse, at least for those who didn't dedicate themselves to learning The Mechanics™ in intricate detail and the optimum positioning and strategy for every battle. Which I didn't, as that's now what gaming is about for me.