GlueBall,
You don't practice aborts after V1: So what happens when you pass 1 engine speed, V1, say 129 kts (A340) and have a second failure on the same side and find you're 28 kts below (A340)VMCL-2 (157kts)? You're going sideways and definitely not up. Same would apply to the Boeing! No climb from rotation on two engines from 380 tons in 340-600, config-3. You will visit the end and the fence, as in this case.
No ways can you continue!