I consider Tiny Toon Adventures to be a next gen series rather than a babyfication.
Anyway, Baby Looney Tunes basically borrowed the Jim Henson's Muppet Babies concept and applied it to the Looney Tunes/Merrie Melodies characters, right down to casting Granny as Nanny (Although the fact that June Foray is still around to provide Granny's voice was admittedly kind of cool). I get that BLT was for little kids, but I could barely sit trhough an entire episode of it. With the exceptions of Sniffles and (arguably) Tweety, The Looney Tunes characters were not meant to be cute and cuddly; they're wacky, nutty and edgy, and that's how they should stay.
Loonatics at least had an interesting concept; LT/MM characters as superheroes, which might, repeat, might have worked if it had been handled correctly. WB could have done this as a Just-Us League of Super Toons TV series with the original gang in capes and made it a strictly for laughts super hero spoof and it may have gone over better instead creating a "new" generation of characters and advertising them as the successors to the throne.