No, it's really not.

Pages I have open:

In the jobs boxout on StackOverflow I'm pretty confident that McLaren Applied Technologies is looking a lead C#/.NET developer.

On another page, the UK Mobile network '3' is offering 12Gb for the price of 4Gb. I know that's true because I took them up on it (and even for 4Gb it's still cheaper than any other network).

I could provide many other counter-examples but I don't need to because you used 'always' in your absolutist statement. Yes, a lot of advertising twists the truth. No, not everything does. And for things that we hold to a higher standard (like a great open source project like Gitlab) we can point out places where they don't meet that standard in the (not unrealistic) hope that they'll improve.