Burnt Valves?

So I got a head from a guy that works at a honda dealership. It’s a B18b head with 60k on it. It has one burnt exhaust valve. Now can I just replace the valve and everything will be fine? Or will it just burn that valve out again? Some jerkoff at my work said it will burn it out again, but I never belive a word he says(Fat Asshole). So if anyone can give me some insiegt on this it would be helpfull.

wouldnt hurt to get the seats recut actually get em cut and a whole valvejob done cheap insurance

I had one valve chip on my K head and just for insurance purposes I replaced all the valves.
I’d just do them all just to be safe.