I think its kind of they're way of dealing with "tower time inflation" I guess you could call it. 1k use to be a huge milestone, Revolution parties for when a guild hit 1k, it was kind of a special occasion.
Now for like the past year guilds are getting 1k hours like its nothing

5k is the new 1k, you still get something for free at 1k hours..how can you complain about something that's free -___-"