Many people said (not only on this forum) that after loosing their gear, they could afford only much weaker one. These screenshots prove, that player could have got much more than enough to replace gear. Period. I didn't say, that it was easy to create exactly the same set of gear, but that it was easy to create set with similar power.
Then factor in that when many players looked to replenish their gear, they may have only looked at stuff similar to what they liked to use. They may not even have been aware that they could have made gear of similar power had they simply looked at different types of loadouts. Which then leads us to the whole part about players wanting a system that lets them earn what they wanted, as opposed to earning what happens to be available at the time.
I do not mean to be callous about it, there just isn't any way to get around that it was built in a way that didn't please a lot of people. We can pull out specific situations, we can argue that had a certain players simply done X, or simply accepted Y, then maybe they would have had a different experience. But, at the end of it all, the system was built to function a certain way that required a certain set of preferences to enjoy it. I understand why some folks liked it, I understand why some folks didn't like it. It is primarily a matter of preference in how an economic model works.
It is possible for "shooter/combat game players" who has some patience (few weeks to level up, choose gear and earn some currency).
I'm not sure that you meant to imply it but it is not fair to equate preference with patience in the context of this conversation.
That said, you are in luck, the above mentioned features tend to be well received. If the many successful shooter games that have incorporated RPG elements and/or progression systems are any indication, tons of shooter players are more than fine with choosing gear and earning currency. Firefall had those things long before the 6.0 patch, and there was no controversy surrounding them. It is clear that those weren't the mechanics that became a big point of contention among the community, it was a particular economic model. So then, if you're suggesting that you can make a full on crafter heaven economic model that only requires the actioner heaven player to do those basic things, then you may be on to something.
Imagine Firefall v0.7 with some changes: Explanation cut short to save space
On the other hand, it doesn't need much resources (money and manpower) and it is the easiest way to create revolutionary <Em-8ER is not an MMO> ("No more WoW clones, only Em-8ER clones!").