This update was nice for giving up power and putting the currency ninja in the recruit tab. The downside is, the sweeping ninja is gonna be time consuming again like before the ninja collection. That was the nice thing about the ninja collection. You just click on the ninja you want to work on and sweep every elite instance right there. Now that it's gone, we have to search through the elite instances again. I think it ninja collection should come back for the sweeping part at least, or make it so that when you click on ninja training and click on a ninja that you get from sweeping, you can sweep their elite instances by clicking on the "!" bu tton.

For right now, I am happy all my sweep ninja are 5* already, but I am still currently working on 5* all my f2p ninja. Once that is done, I will be sweeping again to get their breakthroughs. That will be annoying having to go through all the elite instances looking for them.

Edit: Or you can make it when you click on a ninja in elite instance to sweep, it will show all available instances they are in so you can sweep all at once instead going to each one every time. Like Jiraiya is on the level 90 elite instance tab. Click on him to sweep, make it show like ninja collection sweeping and let you sweep all the elite instances he is in right there. Though I think allowing to click on the "!" bu tton to sweep after selecting a ninja would be better.