For Labour not to make significant gains against a Tory minority government that's been in power over 8 years and regularly tears itself apart over Brexit is nothing short of disastrous.
Perhaps more significant, though, is the swing to the Tories in the old Labour heartlands of the north and midlands. It's now clear that most of the tory vote is pro-Brexit and that's going to hold them to the fire on delivering it - regardless of what some Tory MPs and cabinet ministers want.