Sorry to sound terrible, i started playing beta one with the envoy ships and it was very neat, i would try to get them out first, along with the scouts and they would have the invulnerability on and the only ships that would attack would be the pirates, the factions and the militia would veer off when they came close.
When the envoy ships hit the grav well of a faction planet, they would go straight for the planet and establish an embassy, which was very cool, i would get a 10% raise in relations and i could further it, or i could sorta try the undermine thing, so it was very very neat.
In beta two, the invulnerability is set to 30/120, which means i get fired on alot, haha, and when the envoy hits the faction planet it just sits there, it doesnt establish an embassy and my relations are still zero. If i sit there long enough i start to get shot at again and either have to flee or die, or pull out my envoy ships later, say mid or late game. What i liked with beta one, was you could start from square one with a diplomatic plan, you could start playing differently than we have in the original, or in entrenchment, not to say they are bad, because they were a lot of fun, but with the diplomacy expansion, it was just very very cool to start playing right off the bat in a different way.
That is what i thought was cool, and what seems to be different now in the new beta two.
Not that im like depressed or anything about it, but it was just very very cool and i enjoyed it, and now miss it is all.
Thanks for listening, hope the devs could bring the way it was done in beta one back, and maybe give us an option to do it like then, or like now, i think having the option would be cool, people could decide how they like to play it.

-Teal