CTA did the right thing, they found something wrong on their cars, blew the whistle by taking them out of service and demanded that the manufacture fix them PROPERLY. People may look down on CTA for the defects, but they are not at fault at all, and in fact, they prevented the problem from become far worse in the future.
Broken journal housings are not good. Not quite sure how they work on CTA cars because of the inside bearing trucks, but even on an outside bearing truck, a broken housing will destroy bearing, axle, and likely a wheel set as well. At at higher speeds then I am use to that CTA operates at, it could be catastrophic.