What are the disadvantages of Newsela?

I'm curious to know, what are some of the drawbacks or limitations of using Newsela as a platform for educational reading materials? Are there any concerns about the accuracy or relevance of the news articles featured on the site? Are there any challenges that educators may face when incorporating Newsela into their classroom instruction, or is it a straightforward and user-friendly tool? Additionally, how does Newsela compare to other similar platforms in terms of its disadvantages?