Why are .press domains harder to rank in search engines?

Hi guys, a few months back I was told by an SEO agency that my site would never rank well because I only posted content once a week (even though they are long form and well research articles). They said . PRESS domains are expected to upload content very often since google consideres them to be news sites. I haven't been able to find any data on this so far, is this really the case? Thanks in advance

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