This is absolutely unacceptable.
Imagine thousands of authors, developers, and artists working hard for each positive review, only for Epic Games to suddenly say, “Let’s just throw it all away” 
.
They provided a vague excuse, saying, “We plan to release an improved ratings system…” and blah blah blah, which only highlights their incompetence and indifference toward both sellers and buyers. Who cares about future improvements when these issues NEED TO BE ADDRESSED HERE AND NOW?
Moreover, this so-called “improvement” obviously won’t restore the UE Marketplace text reviews and Q&A section. All of it will be lost.
Update:
I just read a topic over a year old about the announcement of Fab. Sellers expressed concerns about review system, and what did Epic Games say?
We are planning to update the system since we have products coming from multiple ecosystems. We want to greatly improve the way people can leave feedback in the future to allow for improved discovery and less possible toxicity.
And what did Epic Games do? They couldn’t care less and implemented the simplest review feature .
Ironically, they called it “an Evolution of the Unreal Engine Marketplace.”
Yeah, it’s evolving - just backwards 