I doubt this would be done just for Whonix devs/users. This would somehow have to benefit everyone.
Most requests are denied because they somehow degrade anonymity for everyone. Since they hardcoded these prefs(?) they don’t want Tor Browser users changing them around. Maybe the best approach is to upfront with them on the reason for doing this. Take Whonix out of the equation. While non for anonymity make sure they know Whonix devs have already completed a lot of work on this.
- Would be useful to everyone (everyone needs an security focused clearnet browser)
- Not hurting anyones anonymity.
- SecBrowser is Freedom Software
- Nothing in production. Not yet anyways.