I see tons of incriminating evidence against Alex and Chad. I am not swayed much by Lori texting her boyfriend/husband and her brother. I think it is possible that Alex and Chad acted alone to help her out and told her the kids were safe. She may have only learned the truth sometime in January around the time she was arrested. Even the detective testified that there was nothing incriminating in all of her texts that implicates her in killing her kids. I am also not swayed by her not reacting the way we expect a normal person to react. Lying to police after the fact is also not very convincing. It may be a crime but if she truly believed they were safe then it does not really bother me.They have shown a ton of incriminating evidence so far. Lori's own words, (re)actions or inaction were the most damning. For example, never reporting her children missing, replaced by lying about their whereabouts, discarding their belongings, absence of grief after they were found dead, constant communication with the alleged co-conspirators, including before and after the burials. Not to mention the labeling of her children zombies.
I don't actually believe that she was not involved. I'm just saying that if I were a juror I would be ready to convict both Chad and Alex for murder and conspiracy based on the evidence presented so far but I think there is still plenty of reasonable doubt about Lori.
Part of the reason I feel this way is based on the same kind of logic you used. You say that her not reacting and grieving the way society expects is evidence of guilt. I would argue that a woman killing her own kids is (thankfully) extremely rare so I need strong evidence to believe the normal societal norms were violated.
Show me phone pings that place her at the scene of a burial at the right time or a text saying "now's the time" on the day of a murder. Show me something other than she texted her boyfriend 3 times on the day of the burial. I am surprised the defense did not ask the detecting to list how many times she and Chad and Alex texted every day over a, say 3 month period. She is not smart enough not to have left breadcrumbs if she was involved.