From what I’ve previously read the agency that had the frozen embryos did not let them die off, they stored them properly in an industrial freezer kept at far below 0 temps. The issue was a person who didn’t work at the clinic snuck into the room with the fridge, opened it and then dropped the embryos and ran away (the article said the assumption was because the containers were so cold he got freeze-burned). There might be a case here that they didn’t do enough to stop the individual, or check on them often enough, I don’t know enough details to know, but it doesn’t sound like they just simply didn’t care or didn’t store them properly.
States have long had laws against forcibly ending someone else’s pregnancy and those have stood up even before Roe died. It’s not usually on the level of murder/manslaughter, but at a minimum it’s been treated as a destruction of property. You don’t have to treat the embryo as a person to charge someone with aggravated battery or something similar.
The main issue here is the broadness of this ruling (besides the whole quoting the Bible thing) which equates embryos with full-human life. It won’t change a whole lot in this case, the families could have still sued for negligence or destruction of property, or any number of other civil remedies of this was denied, but now it’s laid the ground work to do much worse things in the future.