I am slightly mystified by this. As far as I know, anyone can walk wherever they like, with or without radio, provided they are not breaking any laws. SOTA neither restricts nor extends those freedoms.
SOTA provides a framework of rules within which it pleases a lot of people to enjoy activating and chasing.
Of course the rules could be different, and of course they could be changed from time to time, but there would be less motivation to engage in a long term goal - say, achieving mountain goat in 10 years - if the rules are likely to have been changed beyond recognition in that time.
If WWFF, or WOA, or HOTA, or WAB Trig, or the infinite number of similar schemes which might be set up are attractive, then that’s fine. They are not mutually exclusive. Engage with all of them. Set up a new one. But keep running around with the SOTA goal posts? Well, I would humbly suggest not.
There are several summits near me which are delightful, and which I often visit. Good views. Just outside the P150 rule. That’s the way it is.
(no connection with SOTA other than as a grateful participant)