Be careful - POF modeling is similar a drug
Related to your question:
There are several POF kits which have also the masts and yards included.
Take a look at the Le Coureur of manufacturer CAF for example, which we have inb our group build area - here you can find the kit review and also several building logs
or the Bluenose kit
but you are correct, most of the POF models have no masts etc. they shall represent the contemporary admirality models, which had also no masting shown.
To decide about a new ship form or class, it was important to see the hulls form - masts, yards etc. were standard at this time and not important to show with these models......
Another reason might be, that most of the POF-models ahve the "museum"-scale of 1:48, so finished models with masts would be often more than 1 meter long and also high, with a width of 25 to 30 cm - The models are not fitting any more in average workshops......
Just remembered also the La Salamandre, a bomb ketch, which is also available with masts and rigging......
Scale 1/48 Length 1000 mm 40" (ship body length 650) Width 540 mm 21.2"(ship body width 190) Height 840 mm 33" (ship body height 170)
www.cafmodel.com