It seems the whitelist was created to keep from breaking websites. Certain Chrome and Firefox extensions will break websites if setup incorrectly. uBlock Origin has a predefined whitelist. NoScript uses a predefined trusted list. Blocking scripts in browsers can be frustrating and ruin your browsing experience. I don’t like spending a lot of time trying to figure it out, anymore.
I think that given most brave browser users have chosen it specifically on the privacy, etc are likely not to like this change.
Whilst I don’t use the brave browser, I do use uBlock Origin and uMatrix in Firefox and at times that could break some pages/websites.
That however means I need to allow some permissions to see some of the data or the page. That is a price I pay for that level of protection, so I don’t think that brave users would be any different. They could temporarily or permanently allow a site or parts of a site or 3rd party site content.
Agree with you there (as usual ;)) when using uBlock Origin and uMatrix always go for “the minimal to function properly”
web-page settings. That is giving you the best all round protection you could get.
Additionally always check a first time destination without actually going there (through a 3rd party cold recon scan of sorts)
So before actually opening the website in your browser and venturing out there.
Some very wise words in English say: “Curiosity killed the cat” and the browser end-user as such. ;D