I think what a lot of people forget or don't appreciate is the sheer scale of FAANG companies and what they deal with on a regular basis.
People complain about how they can't talk to a human being about their one specific issue. These companies are not mom and pop stores dealing with a handful of suppliers, just sitting there waiting for their phone to ring - they're huge businesses operating in hundreds of countries 24/7/365 handling probably millions of interactions with "customers"/suppliers every year with all sorts of different processes and policies in different jurisdictions.
On Hacker news we hear about someone falling through the cracks in the system every couple of weeks, but we don't hear about all of the bad actors/viruses/malware getting blocked/removed from the app stores or cloud vendors everyday
There are people out there whose strategy is "throw enough shit and something will stick" who are trying their hardest to publish their malware as much as possible every single day and it's (IMHO) frankly something of a success/miracle that we've not seen any more major abuses of the app stores and cloud platforms.
People on HN complain bitterly about the potential for ad networks to distribute malware, but then get mad when FAANGs ban accounts that are linked to bad actors. Sure it is sad that some people are innocently caught in the crossfire but what are the FAANGs to do? Damned if they do, damned if they don't?