Google is not just a search engine. When articles/commenters critique Google, they are usually criticizing the entity that oversees not just Google Search, but Maps, GMail, YouTube, Android, Chrome, and Google Cloud. Google/Alphabet's strength in each of these subsidiaries and services has a synergy that perpetuates its lead across those same subsidiaries and services. In other words, not only do most people find Google Search to be great, or at least very satisfactory, they like the convenience of it being mixed with Google Maps/Youtube (video search/Chrome, etc.
The other thing to consider is that "2-3 negative posts" on HN per day may not be indicative of anything, because it's not surprising that a company as massive as Google/Alphabet has a large share of discussion and controversy.
The other thing to consider is that "2-3 negative posts" on HN per day may not be indicative of anything, because it's not surprising that a company as massive as Google/Alphabet has a large share of discussion and controversy.