Without knowing the rest of the story I’ll cut the guy some slack.
I have not spent as much time paddling in the Everglades as some folks here, but I have paddled all over the US, and the combination of challenges in the Everglades make it differently daunting for the uninitiated no matter their experience elsewhere.
Not just the need to pack in all potable water, and protect it (and food) from thieving thirsty raccoons, and deal with no-see-ums and sand spurs and razor sharp oyster bars and mud flats and changing tides and wind.
The only time I would trip in the Everglades is “winter”, and November and March are not winter enough, pushing my limits for potential heat wave, humidity and bugdom. Add the occasional post Christmas South Florida cold snap, especially if windy, and it can be right chilly for the sub-tropics. Simply selecting clothes and sleeping bag is an exercise in anticipation and hoping you got it right.
Selecting a route, on arrival, with consideration for tide timing and wind/weather predictions, combined with the need to register for NPS backcountry island sites or chickee platforms, is like playing chess with Bobby Fischer when you are not even sure how all of the pieces move. Thinking one move ahead won’t cut it.
Route finding in the mangroves can be a nightmare, missing an inauspicious opening can lead you far astray and map bewildered, and mistiming the tides can leave you stuck in waist deep mud. Yes, I managed both in the space of a few hours on my first trip. And then a few more hours waiting for the tide to start coming back in.
The open water Gulf can be delightfully calm, or impossibly choppy and windswept, sometimes on the same day. Mangrove tunnels can be a sheltered delight, or freaking narrow branches in your face wish you had a saw (although you aren’t going to saw your way out, and I believe cutting mangroves in the Park is verbottten in any case)
It is really easy to screw up in any number of ways, and if you do there may be no solid ground on which to camp overnight while you get your wits and bearings about you.
I can’t think of any place in the US that presents as many tripping issues to solve, as many Can’t really get the gist of it from a guidebook challenges, and as many penalties for screwing up as the Everglades.
And it is a uniquely awesome place to trip. Go with someone who knows it.