Not sure how many other people are going to post in the sub forum about those events, or if any other staffers are going to bother putting an opinion in, but I think you're right in the fact that these events need to be more regular. It's great to support a site and all, but it's even better when the rewards/perks being promised are delivered on.
Even if they patch it now they can't stop you from getting CE done. If you haven't done H2 then you better get on that. The Great Journey might not be as bad as The Maw but its campaign is much harder.
If it is the hallway with the carrier forms, they are infinitely spawning unless you push forward. I just threw a grenade down the hall to blow them up and sprinted through avoiding enemies. If you keep going straight through the next door, there is an overshield you can pick up to help clear the hall for your partner.