Remove your shoes, Don't remove your shoes it's up to you. Since you have followed the other posts and threads you should know what to expect. If you feel this or any policy is not right you can "protest" in any way you see fit as long as you are willing to accept getting SSSS or hiring a lawyer....
I for one file a complaint EVERY time I'm told I HAVE to take off my shoes, or the screener is over the top when it comes to rudeness, etc. I don't ask for the form anymore, just use TSA.gov. I always try and get a name if warranted.
To date I have emailed 9 complaints and 1 complement(MKE)
IMO feedback overtime will show patterns that can be addressed.