Your right. When I referenced commercial tomato growers, I should have specified large scale growers. They typically plant, fertilize, weed, and harvest mechanically. They need all the tomatoes at the same stage of ripeness and the same size at the same time. Thus the need to plant determinate tomatoes. Most large scale growers can't afford the hand labor required to plant, maintain, and harvest indeterminate tomatoes. They market their product to some grocery chains, juicers, and pulpers like Campbell soup company by the ton.
The smaller commercial boutique growers serve a different market like restaurants, roadside stands, farmers markets, and basically local clientele. They grow determinate, indeterminate, and many varieties of heirloom tomatoes.
When I referenced home gardeners, I was mostly referencing raised bed and row gardeners. I wasn't referencing container gardeners. The container gardeners typically have a fertilizing and watering program totally different than the raised bed and row gardens.