It was a comment on your claim that brave is a great product.
Straight up scamming their users is in my opinion not something that is done by "great products".
Other examples is that Web browser that added their own referral code when users bought stuff on a crypto exchange. Oops, that was brave as well.
Or that one that installed a paid vpn service during an update, without user consent.
You guessed it, brave that as well.
Of course it affects the average user, if nothing else then by showing that the browser can't be trusted.
If the people making the browser is willing to alter the Web pages people visit to steal money once, what makes you think they aren't willing to do so again for any number of reasons?