We are talking BC here, not AD. Vikings didn't make a serious appearance until the 900s, following in the wake of the Anglo-Saxons who became well known only from the 700 ADs onward.
The dominant people in this area prior to 700 BC were Phoenicians, and their ambitions were mostly to mine the tin in Cornwall.
Which means that the fine poster's comments were more on the mark than yours concerning the space of time between this boat and the Vikings. It is more nearly 2000 years than it is 1000 years, and the error in you make in suggesting it could be of Viking or Norwegian origin would be like confusing the Roman Empire with Brazil.
Persons living in Norway were sailing all over at the date of the Dover boat, and maybe it was even made in Norway. It is not impossible.
It was another poster, not I, who used the word Viking. I am well aware that term is not used before AD 6-700 era.
But in 1000, and in 2000 BC! persons living in Norway were very actively sailing and trading with the British Isles. I did not say that all of those isles were civilized, nor even that the "Norwegians" were civilized, only that they were sailing and trading.
To be sure, Ireland was not an organized nation-state or people till around the time of Christ, but I am not sure it was as backward as you suggest. Remember, Stonehenge dates to 2200 BC or earlier, and I do not think the people who built it [who DO seem to have lived in Wales BTW, as well as W England] were necessarily more advanced than was the general level in the British Isles or Scandinavia. The difficult "little ice age" of circ 700 bc -300 AD came later.
I use the term "persons living in Norway" to avoid the fight over what race or ethnicity they were, but my guess is AYCT that it was within the present Scandian/Anglian/Old English/Old Norse family of languages that they spoke.