I think it's entirely reasonable they don't want to come down and chat since they don't want to end up having to give us their tech. After all, how will they kn

I think it's entirely reasonable they don't want to come down and chat since they don't want to end up having to give us their tech. After all, how will they know they've given it to the 'right' side, especially with all the hostility they must have observed between us. I think any moral species would wait until we've made sufficient progress on our own then meet us at our level instead of rocking the boat by coming down demoing all their advanced tech.