This is just a ploy to keep you off their social media.
If you vent your wrath via a phone call, it’s so much better for them.
So by all means make the call. And also keep posting on their social media how wrong they are for supporting this.
I agree, but do call
You're right, they want to move comments into a domain they have a systematic, bureaucratic, means of handling and put out a PR statement about how they've "listened to the fans" and will now have more American flags in their during NFL games or some trash like that. Maybe red, white, and blue, blankets on the horses a couple of times.
Social media, well, they can't control, channel, and defuse through filtering, comments made there where a lot of other people see them and are influenced by them. One person making a comment, then another, and soon even the people who are usually wallflowers are stating what they really feel about the flag being disrespected.
Those wallflowers would usually read the PR statement, perhaps grumble to their family a bit, then tune in to see how the ads from Bud change. Not at all the same reaction they have when people are taking a firm, often colorful, stand on Social Media that will encourage them to skip the NFL games completely.
JMHo
Call them AND get on their social media.