Hypixel even created 16 NEW MAPS in bedwars and the people really liked it since its a good intention to see something new that got added.
First of, CubeCraft and Hypixel are not the same, what Hypixel does is up to their staff members. Second of, the Bedwars maps that were added are (imo) not even good. I feel like they just spammed maps more than taking the time to create good and original maps, but thats my personal opinion. I'm actually glad CubeCraft doesn't do this, and the maps they do provide are original and very good looking. The additions like for instance jump pads in SkyWars are also very original and great.
I can assure you that we're not forgetting about maps, as the EggWars and SkyWars update are proof of this. Our SkyWars update had 13 new or revamped maps. The creation or adjustments of maps are constantly happening, although keep in mind that we're also creating maps for our marketplace items.
Indeed there were a lot of maps added to SkyWars recently. I think its best to stay patient than to have the designers work on maps created by the community. They're doing a tremendous job as far as I know and as
@Marieke2001 stated, it just works better this way.
Of course I would like to see more maps being added, but as much as I want that, I also want the maps to be good. In my opinion there doesn't have to be any changes in map submission. And honestly, if you really like creating fun maps, maybe apply for the staff team yourself? :)