Although the fact that the normal goblins were asleep now and wouldn't be able to walk on their own was indeed a problem, Dawn has an answer to it.
And that answer was...
"Guard this place with the other normal goblins and with Una."
"We'll wait for the other normal goblins to wake up."
"I want none of them to be disturbed during this process."
Right, Dawn planned to wait for the normal goblins to wake up so that they could carry themselves on their own two feet.
After all, it's not like it would take a long time for the normal goblins to wake up.
The fact that they were still normal goblins means that the evolution that they would take would be just some goblin High or something.
There might be some Baron coming out from this batch, but it shouldn't take a long time for them to receive it with their bodies.