Yeah, I admit to not taking enneagram seriously, it doesn't seem to have any kind of scientific basis. More like a "spiritual" pseudoscience, even the "enneagram figure" is pretty ridiculous and has no theoretical basis. Amusing, yes. Convincing, not so much. Socionics isn't all that scientific either but it's standing on a bit more solid ground, with research and publications that seem relatively more concrete.
I care about accuracy, that's why I'm even bothering to contrast the two types I've narrowed down for myself a while ago already. It doesn't have any impact on my self-image but it's satisfying to pin something down precisely to confirm an understanding.