Now allow me to give you the long story on why this question is posed:
Last night around 10pm EST, my dynamis group formed in Bubu to enter dynamis. We had 3 blms at point and a thf and rdm in zone walking to the place, and we had 1 group in front of us that were entering dynamis. Suddenly, the zone crashes. When I realize what happened, I log back in immediately and am back at the OP where I spawned into the zone at, and I see a couple of rando blms passing me heading towards the dynamis entrance. When my pt gets back in place on the heiroglyphs, the other pt (made exclusively of DraconicBallad) claims they have next. In say I told them that we were there before it crashed, and we should be next. Then I tried to reason with Dirac, their pt leader as follows:

Imblaxican was one of the blms in the group that went right before us when the zone crashed, and he clearly acknowledges that we were next.
So besides the fact that we should have been able to go next solo, Bargor, one of our members, strikes a deal with Dirac where we will take ravens, efts, scorps and urgs, and they can have the other 6 pulls and boss. This "split" sits okay with me because we're a relatively beginner group and we can't possibly clear the whole zone yet.
We are pretty slow and wiped on ravens once, but we killed them, then killed efts. THEN we go to scorps, and they are gone... continue to urganites and they are gone. Other group killed everything before we got a chance to kill our share. We find them at the last group of mobs available, crabs. When our brd tries to aoe sleep the crabs, I guess due to the glitch he can't sleep them, so he dies twice, one of our blms die once from an AoE sleep attempt, and their thf dies on the pull and they cry MPK for this when we tried to split the group and take the mobs from them. Knowing we can't actually do crabs, they leave crabs and just go for the boss. My pt warps out, feeling pretty robbed and cheated by DraconicBallad.
Then I gloriously try something suuuuuuper sneaky. I logged out right before they killed the boss and my pt was gone so they'd see no one was in zone, I used invisible on myself to sneak up on them doing crabs, then when their pt weakened the crab pull to ~5%, I thundaga3ed for multiple crab kills and loot, they mopped up the rest of what they had claimed. I got 2 100 pieces from this, and I really want to "split" the zone again with them next time they are in bubu, killing the AoEed mobs they have weakened for me on my dualbox blms. What's the interpretation of the rules on this?
Their DraconicBallad pt consisted of Parzo, Lunalovegood, Sarumon, Dirac, and two other I don't remember.