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Logically I don't get it as the digitals are far more accurate and versatile (...)
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I'd have to modify that statement to read: "...digital scales are
sometimes as accurate, and
occasionally more versatile..."
Expensive electronic scales are generally pretty good. (And I'm fairly certain that the OP is firmly in the realm of 'expensive'.)
But the cheaper stuff... not so much.
As we have discussed in the past, I found several popular FA and Cabela's brand digital scales to be dangerous if used with trickled charges.
The circuitry of some of these scales seems to be dependent upon the displayed value and hitting a certain threshold before it will increment to the next unit.
So, if one trickles less than the threshold into the pan, the scale may not increment ... possibly several times in a row, resulting a displayed value that is lower than the actual weight of the charge.
It's a bit like some of the old coin-operated pool tables and cigarette machines that required three to six quarters to drop the balls/cigarettes. If you only put two quarters in and pushed in the coin slide, it would take your money, but no balls/cigarettes would drop. The process could be repeated for $100 worth of quarters, with no change in the result. No threshold, no increment.
With one particular Cabela's scale that I have (which, in the past, could be found under many other 'store' brands), I was able to trickle 37 grains of powder into the pan with the display only reading 17 grains.
It was an extreme test and is an extreme example; but shows what goes on with some of these scales and how far off they can be.
The zero also tends to drift on the mid-range and budget electronic scales.
And, even some of the 'latest and greatest' have problems. For example: Hornady's latest scale, when initially released was described as "designed for trickling". That has since been changed to "trickle compatible" ... because many buyers, such as myself, found that it gets very unreliable when more than about 0.5 gr was trickled.
The zero also wanders.
And if it isn't re-zeroed every 15-20 minutes, it starts having seizures. (Zero jumping +/- 3-6 gr, or displayed weight sweeping up and down like a sine wave.)
For weighing hand-thrown charges or doing any kind of trickling, I use a beam scale (RCBS 5-0-5).
For verifying powder measure thrown charges, I may use the beam or an electronic scale. (And re-zero regularly.)
For sorting brass and bullets, or weight-matching jackets to cores for bullet swaging, nothing beats the speed of an electronic scale (or six).