I would wait until his claims are more thoroughly examined and there has been some evidence based research on his claims. I do have my doubts about the credibility or Ecowatch's reporting as it has been referenced as a site that pushes pseudoscience.
Referenced by whom? Do you have sources or examples?
It's pretty easy to identify sites with skeptical content, for example if you search the term "vaccine" on Ecowatch you will get quite a bit of Anti-vaccine pseudoscience articles, the same can be said if you look up "GMO". Also the tone in which they write about subjects is usually bias, either endorsing or attacking a subject, credible scientific publications tend to utilize an even tone and usually link to peer reviewed data.
Also is you look at their writers/contributors you'll note that none of them have written for any scientific publications and that while one individual is listed as "graduate from the University of Southampton where he studies Environmental Sciences (BSc)" there are no actual scientists among their writing staff. https://www.ecowatch.com/about-ecowatch-1886104674.html
Also there's a handful of sites that list them as pseudoscience, however in the age of the internet it is pretty easy to find a post somewhere that agrees with your position on a matter no matter what it is so relying completely on such sites is a weak position.
https://setiathome.berkeley.edu/forum_thread.php?id=80973
https://mediabiasfactcheck.com/ecowatch/
https://www.agdaily.com/insights/farm-babe-internets-biggest-culprits-fake-news-agriculture/
Interesting, but does that make you doubt the content of this article? As your link says, the retraction of the article in question was at Rommens' request. This doesn't significantly discredit him in my eyes.