No.
But if the Eddas don't describe the Elves as more Dexterous.
And Tolkien described them as essentially superior in every way (not just more dexterous)
Then how is DnD breaking with the Eddas and Tolkien by changing Elves from being more dexterous than humans to something else? Neither source made that claim, so calling on them to defend that claim makes little sense.
Were Legalos' people played up as noticably more intelligent, wise, or charismatic? Strength doesn't seem to be an emphasis. Dexterity was though:
"Legolas watched them for a while with a smile upon his lips, and then he turned to the others. ‘The strongest must seek a way, say you? But I say: let a ploughman plough, but choose an otter for swimming, and for running light over grass and leaf, or over snow – an Elf.
’With that he sprang forth nimbly, and then Frodo noticed as if for the first time, though he had long known it, that the Elf had no boots, but wore only light shoes, as he always did, and his feet made little imprint in the snow.
‘Farewell!’ he said to Gandalf. ‘I go to find the Sun!’ Then swift as a runner over firm sand he shot away, and quickly overtaking the toiling men, with a wave of his hand he passed them, and sped into the distance, and vanished round the rocky turn. [LotR, i, 3, 'The Ring Goes South']"