I think that a large part of the anti-campaign sentiment here is more about how they tend to focus the entire playerbase into a small handful of activities while they are active. Will you see a lot of people grinding thru Voidwatch when there's no campaign? Not likely. DURING a campaign though, you'd be lucky to find an uncamped ??? for any of the NMs that drop HM Pouches, and likely to see entire alliances hanging out by each one, for the majority of the time that the campaign is active. How often do Domain Invasion dragons die on Sylph when there are no campaigns up for it? I'd be willing to bet that Azi Dahaka (Escha-Zi'tah) basically never goes down, since that is how it works on a heavier population server like Asura. Campaigns are not necessarily a "bad thing" period, but certain ones do have a greater impact than others, and not always purely positive.
I estimate that I saved ~1000-1500 logs this week leveling Woodworking from 25>106.6 so far due to the crafting skill up campaign. That's ~100x stacks worth of mats that I would've had to buy from AH or farm that are not buyable from NPCs, so that's a rather large economic impact (and most likely why the devs have classified it as a "powerful campaign" that they intentionally avoid using frequently.) It's also a rather large time-savings, which also means that I've burned through part of the game's content much quicker than I would have otherwise. In my case, I was actually able to make it almost entirely on what stock I had hoarded away, which would have been almost impossible to do w/o the campaign. The campaign enabled me to essentially remove myself from the economy as far as the task was concerned. Great for me, bad for sellers.
So it's not necessarily so much a "You can't have it easy because I didn't have it easy when I did it," kind of thing. It feels like there is a worry that everyone will burn thru content too fast and end up getting bored/quitting.
Also, I find it hard to believe that there are more than a small percentage of players who would actually agree with the OP. What was asked for is massive overkill no matter how you want to look at it. About the only thing I would agree with would be the increase in regional currencies, and probably excluding bayld/silt since they are the easiest to get right now.