Absolutely not. By Fiverr adding the little phrase "Even if you have some unsatisfied customers, it will not significantly impact your ratings if most of your buyers are satisfied." tells me that Customer Support doesnt care about the sellers, and leaving them to 'deal with it'. There are vindictive and hateful clients out there, who, if they dont get what they want, they will cancel the order and leave a BAD review just out of spite... even it there was a 'misunderstanding' This is BAD all the way around.... Not having a sellers best interest in mind is why people are leaving the platform.
Its sellers who are the ones creating the content for clients to pick through.