Ok, I know this site isn't reddit or any other online forum to discuss ideas, but as someone who is new to Puella magi madoka magica, the overall narrative of the series resembled the Lovecraftian sci-fi of the half-life and the SCP Foundation.

The magical girls are comparable like SCP GOI factions, The incubators are precursor aliens take some form of earth's resource, the masquerade from the rest of humanity, the constant time-traveling, and overpowering/underpowering of other magical or anomalous characters and so on.

Its narrative is mixture of urban fantasy, Sci-fi, and cosmic horror and Studio SHAFT's art style is dark and semi-realistic as valve's art. I don't know, but this might be why this IP appeals to me.