Hey, if you had said "Sphereii and I couldn't agree on a format so unfortunately his launcher won't support my mod" then I would have left it. But no, you said "he doesn't seem like he cares" and "if the mod launchers author doesn't care about..."
Come on man, you're clearly intelligent, you know what you did.
Anyway, your thread, back to its regularly scheduled programming. Sphereii has 40k other users, so his project isn't going to get hurt and likely neither are his feelings.