Most people wouldn't be against the idea of alternative endings if the core game didn't feel so disjointed and -in some aspects- barebones or unfinished, i.e. if they had actually set-up and developed the Regis-Noctis relation, if we could have actually played in a pre-invasion Insomnia to actually understand what the characters lose when the city falls and have a stronger emotional response once we visit its ruins, if the plot's inciting incident (Insomnia invasion) didn't happen off-screen, if there wasn't a tonal dissonance between the fall of Lucis and the bros going on a mostly cheerful road trip, if Gladiolus and Iris actually showed any resemblance of grief over their dead father instead of her happily going out on a date with Noctis, if the open-world didn't suddenly disappear mid-game, if Luna's character had been set-up and delved into at all before her death, etc. If those core issues had already been worked on, then sure, go ahead, give me 10 alternative endings for all I care. It's the misallocation of resources that is so frustrating and disappointing, even more so considering that -apparently- the development of FF15 will finish once Noctis' alternative happy ending DLC comes out, so there really isn't any hope for them to finally work on the game's core issues after that.