i suppose you may be right, tbh on a lot of fights we manage to kill them in around 3 mins 30-40 secs so I just go with cinder. Also cinderstorm is better single target if you can reliably get all 6 cinders to hit. Also I just like that huge second burst of combust/pot/rop and sinew all timed together. On longer fights kindling is always gonna be better though but I'm yet to make much progress into mythic raiding as I'm not in a progressing guild.