I don't understand why people don't like BIAB.
Jimmy, I don't think it's so much "don't like BIAB", and it is "don't see enough benefit in BIAB to change". I've honed my process to the point where it's dependable and repeatable, I enjoy doing it, and my beers come out great. There's little to entice me to change it; refine it, sure, but change it, not so much. And cleaning up my mash tun isn't on my "critical path" - I do it during the boil - so I'm not likely to save any time overall. Plus, I've never had a stuck sparge (talk about tempting fate by mentioning it...), so no benefit there either.
On the other hand, BIAB is likely a fine method for a new all-grain brewer to try, assuming your brewery can handle whatever method you use to lift and drain the bag (I brew in my kitchen, could be problematic for me).