I did the same migration a few months ago, from @lemmy ml to !linguistics. Frankly, I don't regret it; even being a smaller instance I've seen far more activity there, and I feel like the environment is safer to talk about certain topics. (The lemmy ml comm was a bit of a ticking bomb, really.)
Keep in mind that the focus of the dataisbeautiful comm might change a tiny bit, even if the rules stay the same. Older users already created an association between mander.xyz and science; I think that they'll be a bit less prone to post fluff, and more scientific data. That's actually good IMO.