It makes sense to me.

I met a woman in a bookshop who said she grows gourds in her greenhouse (practically the only way you can get the larger varieties to mature here), and she said she had her greenhouse oriented into the prevailing wind (facing west) to keep down the humidity, stagnant air and heat.

If you have a library card, get the book Solviva by Anna Edy. She gives quite a bit of info about thermal convection in her house and greenhouse.

When you have a lot of sunlight shining on a greenhouse or home that has a lot of glass, you need to have a place down low what will draw in cooler air (if you've got any shade, that's usually where the intake should be), and vents up high (preferably on the hottest/sunniest side) that are large enough to vent the hot air fast enough. A cheap fan or two, anchored up near the exhaust vents and blowing outward can help a lot.

The cooler air comes in the lower vents, moves across the plants and the greenhouse, and as it heats up, it moves upward to the exhaust vents and out. The faster you can get the hot air to move out, the happier your plants will be.

Sue