I too would like to see a routed approach - all this clumsy tunnelling house of cards junk is never going to be reliable.
Seems to me it's the other way... With tunnel's, if one station goes down all the other gateways persist. With the BPG routed system, the gateway is another weak link in the routing chain. What happens if the BPG gateway goes down - every station down stream is isolated. I've heard there's provisions for alternate gateways - but is that being used here?
The idea, that was mentioned here a few months ago, of tunnel gateways dynamically rip (or ?) announcing their existence to fellow gateways is intriguing..
73 Bill, WA7NWP