Yes, but how much emphasis do you put on the DUM? The notation doesn't really tell you. Some hornpipes are played with a very definite emphasis - Harvest Home is possibly one of them - but others may be played more smoothly. If a particular tune is to be played emphatically dotted, then by all means write it like that, but be aware that it may not the only way to play it. Even if it is to be played dotted, that can sound very plodding unless you give it a bit of swing, which the notation can't capture.

The point I'm trying to get across is that whether hornpipes are written dotted or undotted, the player has to decide for themselves how much emphasis or swing to give the tune. They can't get that from the dots, they can only get it from listening, or even better by dancing to a few.

To take a tune dear to my heart, Barry Callaghan's "Hardcore English" gives two versions of the Cliffe Hornpipe, one dotted and one undotted. The dotted version, played as written, sounds absolutely fine. But it is only one way to play the tune, and doesn't represent the way Bob Cann, for example, played it. In fairness, neither does the undotted version, played exactly as written. This is my point - once you've learned the notes from the dots you have to understand how to play those notes, and conventional music notation isn't up to it (unless you get very detailed, when it's almost impossible to read). The interpretation and understanding has to come from listening.

Cap'n, out of more than 50 hornpipes in "Hardcore English", only 5 are written dotted, and these are presumably those tunes such as "Kirkgate Hornpipe" which are intended to be played with a lot of emphasis. But I knew Barry well enough to know that he did not intend the others to be played exactly as written, with little or no emphasis - he would expect the player to understand how to interpret a hornpipe. And this goes for jigs and other rhythms too.