DS still has 10 second diamond/red and 20 sec diamond/green. Once you get a diamond dragon you can fill your land with just a little time and farming. They are too invested to change DS. My guess is they do not have as many staff working on this game until they see the profit margin. Which is why we see changes after about amonth or two. All games follow that cycle within reason.
You are a CS player, there are certain "things" that will not change and that is by design. No matter how long and how many people ask. There is nothing wrong with that so long as you know your place in the environment. Changes will be made so long as they help the bottom line. That doesn't make the game less fun, just more frustrating until you do get an ultra.
Then you have other decisions to make. To be honest compared to what you are dealing with now an hour wait time is a godsend. But like DS we will eventually have 20 hour fails on diamonds and likely percent increasers and all of that. Why recreate the wheel when you have one that works very well?
I am not trying to be negative just realistic. I am pretty sure things are going to stay the way they are. TL may throw us an occasional bone but that will be to placate us. Sorry just my experience playing online games for 20 years. And being a tech director who has a programming department.