Yes. I always store tomatoes in the fridge. There are two reasons for this in the south. If you leave a tomato on the counter in the summer, it will ruin quickly. Also we eat our tomatoes cold, either by themselves or in a salad. The only way a tomato is good warm is straight off the vine.
I noticed the article said they refrigerated the tomatoes then brought them back up to room temperature to serve. I found that unique.
But then in the south in the summer, we also put chocolates in the refrigerator. Otherwise, you get a sticky mess. Many older houses in the south don't have central heat and air. Though just with our evaporative cooler, we can keep the house about 20 cooler than outside. And our electric bill is less than half of most people around here.
Now we have talked about US/UK differences, but here is the thing. I can't say how the entire US uses various foods. We have the Northwest, the Midwest, New England, Southern, Southwest, Gulf coast, California, Cajun/Creole, Alaskan and Hawaiian cooking. Oh and Tex-Mex. Southern Florida is heavily influenced by the Cubans. I have probably forgotten a couple.
Gravy has many different variations here, depending on the region. Don't look for a chicken fried steak outside the south.
We have a national chain called Dairy Queen. They have two very different menus. One for Texas and one for everywhere else. They run both ads here. The everywhere else ad has a disclaimer (not available in Texas), the Texas ads mention Texas.
Oh and you heard me mention Tex-Mex. There are at least 6 different types of Mexican restaurants here in Texas as far as the food is concerned. That isn't counting the fast food places that serve Mexican food.
Now I could pretty much cook anything but I have cookbooks from all over. I have 36 of the 50 states. And one from Washington DC.