I'm sure WIS operates under constraints just like any other business. They probably have someone at corporate looking at their financials on a regular basis. Trying to explain why your income goes down dramatically is often times uncomfortable even when you can explain it well. In this case, what do you think they could say? "Well, we are trying to make the game better and while we are doing that, it's going to be messed up until we can get it right. While we are doing this we're going to give away free seasons until it's working better. Figure about 4 months of no revenue." That would be followed by the question - "Wasn't that what the beta test was for?"
Don't get me wrong. I don't think tweaking a system like this is easy as there are a lot of variables to consider. All the more reason for a well thought out plan and a solid test system. Honestly, I've never understood why there isn't a low cost test world where all these things are rolled out first. That world would be the test bed and only when things have worked there for a while, would they be rolled into the rest of the worlds. I don't follow the forums all that much. Maybe this has already been discussed and good reasons put forth why it can't work.