Why do you write "if the miners set the flag" for their node(s) to accept Full-RBF? They would be stupid to not enable Full-RBF for them by default. Every miner has a financial incentive to have Full-RBF enabled. I can't think of a reason why any miner or mining pool won't do this.
Do you have an example of a miner who doesn't?
From what I understand (correct me if I’m wrong), the flag is disabled by default. Miners would need to manually change the config file or something to enable it. Obviously, anyone who knows what they’re doing would turn on the Full-RBF feature.
That’s not really the point here, though. I’m not trying to start a debate about whether miners would set the flag of course they would. It was just a way of write it, so sorry if it sounded dumb or confusing. Maybe it’s just how it came out in my head since English isn’t my first language.