Again, I disagree. It takes the same amount of time, but it doesn't mean the same thing. A 80 hp fighter with 4 hp missing might not even appear injured to the casual observer. That 4 hp represents far less than a single hp of the 8 hp fighter. When the 8 hp fighter is at full hp, he might still have the same injuries as the 80 hp fighter with 4 hp missing. It is just that, in his case, the damage is below the "1 hp threshold".
This is not SW problem of 4e, although it is a mild form of the "disjoin hit points from injury" method of dealing with the 4e paradigm. The problem with adopting this to 4e (for those to whom it presents a problem) is the extreme degree to which it must be done. In 1e, one merely has to accept that 1 hp doesn't track to an absolute scale. In 4e, one has to accept that 1 hp doesn't track to anything within the framework of the gameworld.
That is, IMHO at least, a major difference.