Or maybe the need and justification is that multiple similar but incompatible charging standards is wasteful and annoying. As that's the stated reason, it seems

Or maybe the need and justification is that multiple similar but incompatible charging standards is wasteful and annoying. As that's the stated reason, it seems a bit more likely than "for the sake of flex". Is government regulation of non-goverment tech illegitimate? That would be most all regulation then.