It’s important to keep in mind the difference between what looks like a mass protest, and the actual player base.
Current login numbers would indicate that the EVE player base is somewhere around 300 to 400 thousand players. If even 2% of those players don’t like something enough to protest, that’s over 6,000 protesters: some of whom will fly to Jita to protest, some will cancel subs, some will post on forums and Reddit. It will look like a mass protest - but it’s still only 2% of players.
The first iteration of Extraction to Production contained some true brainfarts on CCP’s part, both in the design and the reveal of the changes. So that’s the source of a lot of the original protest, which was subsequently modified to a more reasonable set of changes. So likely half the reasons for the original protests are “fixed” to some degree but the anger still lingers. Some players are still unhappy even after the fixes (many Orca pilots for instance), but it’s an overall small number.
Then as Aesir Valtari says, the rest is due to CCP simply exhausting again the goodwill and patience of an even larger group of players - the ones who got hopeful when CCP said (as they always do) “we’ve analyzed the situation and determined what needs fixing and we’ve got a plan”.
And then the “plan” turns out to be, as usual, CCP being clueless about game design and not even understanding what needs fixing and what doesn’t. From Chaos Era on CCP has demonstrated they simply don’t know how to reconcile what makes a good game for players against their own internal “plan” to push the game in the direction of “players buying the maximum amount of subs and Plex and injectors in order to ‘succeed’ at EVE”.
That stream where they showed a bunch of unspecific charts on things like Rorquals hadn’t been an issue for 2 years, and saying “we’re taking action because of they data we have that you don’t”, and “we’re not giving out numbers because you players are too creative with them”, but basically just flailing around trying to pretend they had a handle on things when it’s clear they still don’t know their ass from their elbow.
(As an aside, who else has noticed CCP has started taking all the older MER’s offline and making them downloads you need to sort through in order to see anything? Because, you know, “us players are too creative with access to actual data”, I guess.)
At any rate, the mining changes are overall a good thing for miners and most likely a bad thing for gankers. How increasing mining throughput in the game and reducing “destruction” is supposed to “fix” anything is beyond me, but that’s the sort of bassackwards update CCP is well known for.
That, to me, is the real source of frustration among the wider player base - that players started to feel CCP was finally getting their act together for a change, only to be shown the same standard level of cluelessness CCP’s done for the past decade.