jsonfeed 1.1 "authors" not supported?

[jrus]

I tried copying the content of a jsonfeed example into a feed:

{
    "version": "https://jsonfeed.org/version/1.1",
    "user_comment": "This is a microblog feed. You can add this to your feed reader using the following URL: https://example.org/feed.json",
    "title": "Brent Simmons’s Microblog",
    "home_page_url": "https://example.org/",
    "feed_url": "https://example.org/feed.json",
    "authors": [
        {
            "name": "Brent Simmons",
            "url": "http://example.org/",
            "avatar": "https://example.org/avatar.png"
        }
    ],
    "items": [
        {
            "id": "2347259",
            "url": "https://example.org/2347259",
            "content_text": "Cats are neat. \n\nhttps://example.org/cats",
            "date_published": "2016-02-09T14:22:00-07:00"
        }
    ]
}

NetNewsWire 5.1.3 doesn't pick on any author here. If I change "authors" to "author" and just put one object instead of a list inside, it is handled as expected:

{
    "version": "https://jsonfeed.org/version/1.1",
    "user_comment": "This is a microblog feed. You can add this to your feed reader using the following URL: https://example.org/feed.json",
    "title": "Brent Simmons’s Microblog",
    "home_page_url": "https://example.org/",
    "feed_url": "https://example.org/feed.json",
    "author": {
        "name": "Brent Simmons",
        "url": "http://example.org/",
        "avatar": "https://example.org/avatar.png"
    },
    "items": [
        {
            "id": "2347259",
            "url": "https://example.org/2347259",
            "content_text": "Cats are neat. \n\nhttps://example.org/cats",
            "date_published": "2016-02-09T14:22:00-07:00"
        }
    ]
}

The jsonfeed 1.1 spec says about this:

JSON Feed version 1 specified a singular author field instead of the authors array used in version 1.1. New feeds should use authors, even if only 1 author is needed. Existing feeds can include both author and authors for compatibility with existing feed readers. Feed readers should always prefer authors if present.

[Raineer]

I found this today as well, I assume it is the same issue so I did not open a new.

If I view a feed which NNW pulls directly ("On My Mac" or iCloud), the author field populates. If I pull the same feed through an aggregator, the author field is blank.

I tested this on both Inoreader and my own FreshRSS instance, and across all of [Big Sur, Monterrey, iOS 14, iOS 15] with [6.0.2, 6.0.3b1, git], the behaviors were the same. I am happy to provide more testing as requested, the author field is important for feeds which are an aggregation of many authors.