@neednolife I think they mentioned it's because they want to release a scanlation with the highest quality they can muster (supposedly, the redrawings and typesetting take the most time, which is why they release much later) for their own personal standards
Whether or not I agree with their methodology is a whole other discussion entirely, but I do think that, purely in terms of visuals, they do a higher quality job - the translations themselves are a matter of flavor/opinion, though, since the accuracy difference between the two is minimal
Overall, I'm sure most people prefer fast+good quality over slow+high quality, in any case, so I do understand why there's a lot of complaints about "re"uploads