That was an example of how at those levels of power having feruchemy compared to allomancy isn't much of a difference.
Dalinar also has powers beyond his surges, such as generating stormlight, or opening perpendicularities.
Well I was planing on this being a simple post where I talk about why I liked a single fight scene, getting maybe three posts total, not a multipage discussion on whether I'm right or not.
Because there is no difference in amount of power, only when it is used, compounders just store it up for later use.