I think some people are missing the bigger picture here... servers should not be competing to "steal" players. Zone not only stole Classic's gifting system, but offered lower prices to try to undermine Classic and then implemented a controversial change that Classic has refused to add(gifting yourself). This is most likely in an attempt to pull players away from Classic and to Zone.
The issue with this? It's bad business. Each server should strive to offer a unique experience so that players will have an incentive to play more servers. By offering unique systems and events it increases the chance players will play on Classic and Zone, rather than one or the other. By not only stealing Classic's system, but undermining it, there is no incentive for players to participate in Christmas on both servers, and instead just stick to one server. That's lost revenue.