It's imperative to gain defensible positions while Azerbaijan is moving forward. Hard and fast. We can expect a lot support to Armenia, so while we have them on the run need to hit supply lines and control roads.
Armenia isn't going to step in, not after Lavrov said karabagh was azeri lands...
So they'll ruin their economy trying to send support and what not to the armenian seperatists.
If Armenia steps in, we'll have to use this chance to cut off their connection to Iran. While repelling them/retaking karabagh.
Hard and fast.