As you no doubt know, click-and-pawls are merely to prevent the line from backlashing and not to apply any significant resistance. So one can make the case that it's not really a drag per se but rather a means to prevent spool overrun. Indeed, Hardy refers to it as a "compensating check" while referring to their disc brake reels as having a drag.
Whatever it is, I was simply expounding the virtues of simple tackle like the St. Andrew. A reel that takes a wee bit more skill from it's user than the modern reels. They are truly fun to use.
Also, by saying "It's enough drag, most times, but not always" I presume you you meant it's enough without applying finger pressure, palming, etc. Disc drag reels are just not required for steelhead.