Thanks for reaching out! Since I have the chance I'll add - Nomad is pretty awesome, and I love the work your team is doing.
My org looked at Nomad at a time when there was a lot of pressure from above to deliver something as soon as possible. Two weeks just weren't enough to full lay of the land ¯\_(ツ)_/¯
Funny thing is even if I could plug in my own service discovery into Nomad, I would probably chuck it away and replace it with Consul after a few weeks anyway haha