^ You are right that those rides will make the park better, especially if they are done well. However, the problem with this park is the tacky look of most of the attractions. For example, look at Mickey's Fun Wheel's queue, the canvas makes it look really tacky. And as EBL pointed out, it gets really hot in the queue (and all of Paradise Pier) in the summer.
The problem with the park is the actual design and infrastructure. This is something that a few rides will not fix. To be able to even compete with DL, the park will have to add things like the coverings over the queue of the ferris wheel.
Another thing to point out, it will look weird to see the new Victorian design of the Orange Stinger, then see the tacky queue of Mickey's Fun Wheel, then see more Victorian themed buildings on the other side of Paradise Pier.