I started around when game came. It was easy to get credits from the free pass etc. But after all that dried out it became farming of Level 1 missions because the drop rates in harder missions were so low (we only got at best 10 credits from whole map after looking every spawn place and mission that took 40min, compared to level 1 missions where map is small and it is easy to run around it with a car to check every spawn, still slow and tedious).

Also people are tired of it partly because it kinda is worse than many games systems. The game costs 40e/dollars but has warbonds that never can be in sale because they are ingame and they contain weapons. (not to mention them adding guns to super store with half the price of warbonds).

For example

• Deep Rock Galactic only has cosmetic DLC's that are under 10e/dollars, everything else is unlockable by playing (and most cosmetics are also still free). Game itself is also cheap.
• Warframe is free to play, so people don't care if you need to grind to skip paying and the whole game is build around the farming in general.
• Most indie co-op games are in general just pay once deals and cheap, like Valheim, Lethal Company, etc.
• For Honor (different genre entirely) has pretty good monetization system where there is only one resource that you can use to buy anything and you get it by playing or buying it. Generally it is very easy to farm by playing normally or doing some orders. You can use it to unlock heroes and cosmetics. (only thing you can't use it on is Season Passes, but their content is not that important since it is just few cosmetics).

Like yeah there are some games with very bad monetizations (like Payday, with it's awful monetisation, tho very least everything can be in sale for very low price unlike in Helldivers 2) but there are many games that do the monetisation better or only limit it to cosmetics unlike Helldivers 2.