Considering there are like 8 Valyrian steel swords in the entirety of Westeros, I did not find it anticlimactic that they proved such a hard counter against White Walkers. Especially since they made the living dead look way too strong, in the books they are surprisingly strong and hard to kill, but they are also slow and clumsy. Here they are surprisingly strong, hard to kill and fast and agile as fuck. With the numbers it just does not seem a sensible fight, though perhaps their weakness to fire still remains, did not look like the Wildlings figured that out though nor did the Night's Watch bother with any fire tactics.
