it's us players playing against MA and current return rates. You cannot blame people for doing so, it's just how the game currently works.
If there are let's say 100 ELM weapons in the loot pool and it's regardless of how the mobs are killed, it's not "us" aginst MA, it's the Group who pull mobs aside, waiting to kill them until the wave comes and thereby getting a higher amount of ELM/person vs those who don't to it.
To roughen it up; among those who are hunting eomons, it's "you" vs everyone else - the more successful "you" are in cashing in the ELM weaopons, the less chance is for everyone else to get ELM weapon.
In the longer run, the more successful "you" are in doing this, the higher the chance is you don't have to use the ELM weapons you loot, but the more ELM weapons you will have to keep in storage until the event is over and to sell over time, while normal hunters who use their looted ELM weapons for their own hunting will quickly run out of theirs.
The more people are using silly tricks to corner in advantages, the higher the risk is also that MA will come with the nerf bat (people trapping boss mobs in instances "We don't do anything wrong" --> tens of mobs easily gets stuck in "dungeons" when MA Wakes up).
If this ends up with 20% of players get happy because they've found out a smart way to loot more ELM weapons and get hither returns from the markup, it means 80% of players will get more upset of bad returns, and if 80% of depositors get upset of bad returns it will mean 80% longer time for you to wait for your withdrawals...
After adding regen on mobs in EU, those mobse were the most popular mobs over night. So is more of a wanted feature.
When regen came, I practically stopped hunting the regen mobs when they came. Now I got a slightly faster weapon than Before the regen mobs came, though if Eomon would become regen I wouldn't have any weapon for them (that I'm guaranteed to have availible throughout migration).
I don't know how many hundred PEDs that has vanished into the black hole because of the regen of zombie/king kong on RT (I guess regen was mandated by MA to allow that size mob).
Maybe regen mobs have split players into two parts; those who like it because of the higher chance of loot (especially during the 10k atrox Young during the casino era), and those who hate it because it feels like a PED sink - especially when you have "mid level" gear.
I got the feeling that Vulcan Drakes (most recently hunted on SI) has gotten regen... and I don't like it. At one time my weapon amp silently died and I wondered wtf the Health s going up instead of down, and noted ammo didn't go down... until I looked in system tab (I had event chat open) and saw 10 of those those "an attachment has reached low condition". And I can bet I didn't get that lost HP back in loot.
But... sure. MA added regen to Proterons (and made them hit harder). So I guess it will eventually happen with Eomon. Eomon (and mutated chirpy) that seems to have started to hit slightly harder than Before (not scientifically proved though, just a personal note).