Ah, so that's what it was about.
On my server there was someone ranting in shout about people chosing Astrid just for the red outfit.
Was wondering why they were angry about people making obvious decisions.
Didn't even know it had some majority vote result / effect that would affect anyone else in the server (or well, those who cared).

I didn't really care for either of the 3 NPC's and went with the red choice cause it seemed the least likely to look bad on my char.
..still looked bad, so probably gonna discard it anyhow. And the story was mildly amusing (at least the WoL's helpless smile and shrug at the end).

The 2-player valentines trial is quite fun though, but only did it once so far - may quickly get repetitive if doing it more often.

Overall I feel it's like any other event so far - some light fun and distraction with cosmetic rewards that may be hit or miss.
Don't really have an opinion on the vote thing. It's something they did, maybe tried it out as an experiment for future reference.
Now they know how easily player votes may be swayed very one-sided depending on presentation of the event / choices, and will maybe do better if something similar comes up in the future.