Yep. I called out my favourite one (warermelon) on that list and also called out the Weight Watchers list of "Power Foods" that's mostly comprised of fresh fruits and vegetables.

My issues with a blanket recommendation of fresh fruits and vegetables are around (1) perception as calorie-neutral, (2) prep time and (3) overall caloric variance.

1. Regarding perception, for me it's very easy imagining apples are "free" (= 0 calories) so I can just eat as many as I'd like. That's not true because an apple is approximately 70 calories. So in a universe where I think apples are calorie neutral (e.g. Weight Watchers has 0 PointsPlus apples) I might be overindulging in apples.

2. Prep time. Most vegetables require either a certain presentation or preparation. That time investment is a "barrier-to-eating" and could cause me to consume higher calorie foods and that's why I prefer very low prep time snacks. Nature's packaging requires some assembly in most cases.

3. The caloric variance amongst is meaningful. e.g. Celery being at 16 calories/100g and potatoes being at 77 calories/100g. That caloric variance there cautions me from saying carte-blanche "fresh fruits and vegetables work for my kind of diet".