Here's why this is a good thing:

If you move the people who are re-downloading an app (which means they already tried it, decided it wasn't worth keeping, then changed their minds) from the phone to their computer, then that opens up a significant bit of bandwidth over time.

That means your call goes through, or your phone can get a better fix on you if you need help or have to find something nearby. It means that there are less people soaking up data because they're being fickle, driving ten under the limit with their blinker on so to speak.

Here's why this is a bad thing:

I don't like having a 5 page dashboard on my phone. I can barely handle 3. That means I delete things often from the phone, but keep them at home on the computer. This also means from time to time I reach for an app that I forgot that I deleted and because I'm out in the field, need to redownload it right on the phone. I think it's convenient, but agree that it's wasteful.

I'm bummed that they're taking this feature away, but I guess it will learn me to depend less on frivolous apps and keep the ones that I really use the most on the phone.