For me it's the unnecessary additions of W's to words that even in babytalk wouldn't have a W-sound like 'bwack' and 'bwody guward'. I could see turning the R into a W but who the fuck just throws the W in middle? This chapter also added the absurdity of turning S and even TH-sounds into CH's instead of SH's. It's also incredibly inconsistent, she'll be capable of making the T, R, and S-sounds just fine for some words then suddenly it's babytalk the next.