Judging on how busy it was on Wednesday, Rattlesnake would generally be getting its usual 2-5mins queues maximum, but everyone walks right past it to get to the rides. Many people saying "why didn't they open that?" many of them over 1.4m
However, I don't see why they couldn't open peeking heights, unless they don't want you to have a view of the whole park. Think about it, enthusiasts would go on, and take loads of pictures and share them all over the internet. Then there'd be no surprise in March.
Rides on Dragon's Fury since SRQ installed:
2016: 17 | 2017: 35