I absolutely hate it, to be honest. If it is as pnoytroi says, and Tower Events still get specific LE Boxes, I guess it's not too bad, but this is really ruining the fun of the game for me.
I can see how it's beneficial overall to the events, though. The competition will be much less rigorous with the smaller number of LE cards, and they'll make a lot more money. In turn it also makes 5*s and 6*s more cheaper in the long run. I just wish they'd do away with the 2* and 3* in those packs, as well as Premium Packs. They're virtually worthless.