I have no experience with the ventilated seats of a Tesla, but I also own a Lexus. Lexus is really great on loaners when the car is in for anything, so I get to try out other cars, and some of them have had ventilated seats. The first time I got a loaner with ventilated seats, I tried it out and turned it as high as it would go. I was sorely disappointed in how little airflow I could detect. I deemed the feature useless. But in about 4 blocks, my nether regions were amply chilly. I dismissed the effectiveness far too readily. I would like that on my next car.
Sadly, that won't be available on a Tesla in the foreseeable future. But Tesla is obviously aware of the feature and likely is engineering a system they like better. I've heard no reports that it consumes too much power or anything. So, I expect to see it back eventually. But I don't believe I've seen a post suggesting that the first attempt was impressive.