I mean, it's weird to encourage people not to increase their physical activity if they're trying to manage their weight.
While it's true you can't out-train a bad diet, exercising, even for just 30 minutes every other day will go a long. Running a 5k will take about half an hour depending on your fitness level and will burn a good 350 calories or so, more if you're overweight. Do that 3 times a week and that's the equivalent of a about 2 meals you've burnt off (or one really unhealthy meal). Plus getting outside and exercising is good for your mental health.
...did you watch the video? You can see their contributions have been $0 year after year with their tax filings, and Jirard admitted they haven't donated anything.