Hi: That certainly looks better! I wouldn’t use pipe dope. Teflon can take a lot of heat. If the teflon fix doesn’t work, it looks like there is enough tube to cut off the burnt end and redo it. If it just needs a ferrule, the job isn’t too hard. 😎
ps. I’ll add that it isn’t likely that the pilot leak is the cause of the bigger problem of sooting. Another thought is that low gas pressure might not shoot a stream of gas properly into the main burner, allowing it at some point to start burning before it gets to and goes through the burner.