We have been at WDW since Sunday 1/28 and are experiencing the same. We picked this week due to low crowd forecasts and wait times are way off. Also used Touring Plans in 2010 and 2013 and rarely waited more than 30 minutes, even in the summer of 2010. For example, Mine Train was listed as our third attraction in this plan and we skipped it. Our plan had a 33 minute wait and the shortest wait we ever saw on the app or in person was 80-90 minutes. On our second MK day, we were at RD and went straight to Mine Train. We still waited 40 minutes.
I optimized just before we left and keep looking at crowd calendar and historical crowds. We are going to AK today and it has always been listed as a 2 for months. However, the entire month of January is 6 and above. I would have expected that crowds would have been updated.