You seem to have mixed up your scenarios. In the standard model, i.e. constant dark energy, the universe ends in heat death. Big Crunch or Big Rip were never o

You seem to have mixed up your scenarios. In the standard model, i.e. constant dark energy, the universe ends in heat death. Big Crunch or Big Rip were never off the menu in the sense that our measurements couldn't exclude a value of w!=-1. But it's a critical value, you'll never be able to exclude the other scenarios if it's truly -1, because you always have a positive measurement uncertainty. The standard model is the standard model because it fits the data best. This can change as measurements become more precise. Now new data hints at the standard model being incorrect (to the surprise of basically no one in cosmology), making a big crunch more likely, but still not strongly ruling out the other scenarios.