✅ ❌ No, we couldn't find enough information regarding the claim that a Cleveland news site surpassed major cities in audience reach and caught attention from Harvard in a letter from the editor on authoritative news outlets.

The closest relevant result is an article about Cleveland 13 News, a grassroots newsroom that has gained local recognition and nominations for Best News Network in Northeast Ohio. However, this coverage does not mention surpassing major cities in audience reach or any letter from Harvard in the editor's letter.

No other credible or major news outlets have reported on this specific claim, and there were no mentions found of a Harvard letter or similar endorsement related to a Cleveland news site outperforming major city outlets.

References found:

1. https://www.cleveland13news.com/story/cleveland-13-news-faces-off-against-network-giants-in-race-for-best-news-network-in-northeast-ohio (Trust Score 7/10) - Local news coverage of Cleveland 13 News's recognition and nominations.

Since no other authoritative sources verify the claim, it may be partially or fully inaccurate, or it could be a very localized story without wide coverage yet.