Just wanna point out that so far only the third invasion of the day has had wins so far... :') but ye finishing the quests for points is definitely skewed. I heard aim is 2k points before mobs even spawn, but we never even reach 1k in the first two invasions time slots ...
I am aware of this fact, but having shown up fairly often to all timeslots (don't judge) I can say with confidence it's the most difficult timeslot to push for a win from a quest point perspective. The third Invasion has near double the player turn out rate of first spawn yet starting point values from completed quests are nearly half of that first timeslot.
I think initial point gain before rifts spawn is slightly low currently for all Invasions, but that is fairly expected for the first few weeks as people learn what needs to get done. The main quests that are important for large turn out Invasions are the 4 raid kill quests, first timeslot has been shown to get a large point boost off the first few rifts as these complete, which is how a normal Invasion should go, second and third timeslots have shown over multiple days to not get nearly as large of a boost as intended.
Like Aviendha said its only the third invasion that is won, even with the Quest completed there are enough people to kill the Rifts,
In the First and Second the people die for extra, dont close Rifts on purpose (letting one mob stand), dodging because "we only complete the quest, and win the third invasion" its on east and west.
So a overwall buff from the Kill points from 180 to 360 or only 300 would fit
First timeslot has just had bad luck honestly, the very first day invasion came out it could've been a win but we were lied to about cutscenes being removed, which lead to an entire raid dying to a general spawn while stuck in that stupid thing and setting back the pace of the entire event by a few minutes. Ever since then it has certainly had a bit of "why try hard this if I can show to the Invasion that wins?"
As for people dying and elites being left alive I don't think there have been any clearly intentional deaths in an attempt to throw, but even third timeslot has griefing by leaving 1 mob alive and running off, it's just something you plan around by having 1 person tail any raid you aren't directly communicating with, so it can be cleaned up. It's certainly annoying to deal with but it's something that seems to come with an event where hostile factions are abruptly forced to cooperate.
I restrained from suggesting too large of a buff since my argument was essentially an offset of the potential points lost from lack of quests due to custom change. If the quest points should be expected to be around 5000 but in reality they consistently end up at 2000, it makes sense for the 55 elite kills required for a win under normal circumstances to be buffed to compensate for the hinderance the custom change has caused.
I certainly wouldn't be opposed to larger buffs, because I think this is a terrible event that should end quickly and has caused many people to quit from live in its current state.