On this Facebook post, Bayan Wang said that Chief Walker confirmed the recent trafficking operations in Bakersfield and LA have no link to the boys' case:
https://www.facebook.com/bayanwang23abc/photos/a.1600107210114534/2750275178431059/
And another thanks goes out to Jo in Calif for her insight. If LE released G'ma's full statements about when she last saw the boys, how long before the rock-throwing hecklers would show up at her house? If it is the case (not making any accusations here, just stating a possibility) that the boys went missing well before Dec. 21, she might have been the very one that brought this case to light by questioning their absence and requesting a visit from the boys or at least a call, say by Christmas. In that situation, I think any of us would do the same: press to see the kids or take further action.
Thirdly, and unrelated to the last two points, I don't know that it's necessarily suspect that the boys' heights and weights are identical. It was mentioned that there are two birth fathers, which would make them half brothers, and one or both of the boys might take after his dad when it comes to build, meaning there could be a slightly shorter/lighter 4yo or a slightly taller/heavier 3yo. Nor do I find it odd that they were wearing identical sweats. Large families do that! At the end of the season Walmart might have all their sweats in the same basic colors but different sizes marked down to a buck or two and we've bought them for every son whose size was on the rack. Or they'd get identical outfits as gifts from G'ma.