In Telia stats dota map it is able to pick only 1 ULT and 5 normal skills.
So i suggest to implement new game mod here -u1 ~ So if chosen ppl can pick 1 ult or 2 ults.
Second suggestion is to add -u3 new game mode that allows to pick 3 normal skills and 3 Ults. But it not force ppl to pick 3 ult - some of them can choose to pick 2 ults still.
Host can type both of this modes in one game -u1u3 to allow ppl to pick from 1 to 3 ultimates.
// Hope you understand what i mean. My English is not perfect.