'CM and MG hid the body under dirt and carried it around to keep V and evidence of cause of death from being found.'
That is only if you don't believe her?
In her own words (during her testimony under oath) she has both described herself as wanting to "dispose of the evidence" and as having a desire to hide baby Victoria's body from the authorities because "if there's no body then they can't prove I gave birth". I believe that they deliberately hid Victoria's body precisely *because* I believe her.
The prosecution's case is that baby Victoria died because her parents made a deliberate decision to subject her to dangerous conditions. I'm paraphrasing deliberately, but that is the gist of this case.
The cold, wet and unsuitable conditions, IMO, did lead to Victoria's death even if you believe CM's version of events on the day/night that Victoria died. The two are not mutually exclusive. We already know that Victoria cannot have been simply lying in her mother's lap after breastfeeding, because we know (from CM's own words under oath) that the only way to keep Victoria warm - ever - was to have her zipped into a coat with an adult, which precludes laying horizontally.
But, for the sake of exploring all possibilities: if she wasn't zipped in, then hypothermia becomes a possibility (as it can be neither ruled in nor out as a CoD). Overlying because her exhausted mother fell on top of her, as CM claims is also possible in this scenario of course. But why was her mother exhausted? In CM''s own words, it was as a result of choosing to go on the run immediately after giving birth.
If, on the other hand, Victoria was zipped into CM's coat, she would have been at risk of positional asphyxiation and suffocating from CO2 build up even without the danger of her exhausted mother falling on top of her.
In either scenario though, it seems to me that the entire situation (exhaustion, sleeping sitting up in a tiny space, being unable to lay down and breastfeed Victoria safely because of insufficient space and simultaneously cluttered and cold/damp surroundings) was down the CM & MG's choice to live in a flimsy tent with insufficient clothing and equipment, in winter, with a newborn, having eschewed any medical treatment or checks for both mother and baby.
IMHO, semantics over language aside, that is the meat of the prosecution's case in terms of gross negligence and MOO is that they have a good case.