Riot is Trying Too Hard to Stay Relevant
LoL is still probably the most popular game even if it doesn't have the explosive growth it once did but a lot of Riot's moves reek of desperation. There are many changes that seem to exist only for the sake of change itself. Likewise, there are reworks of balanced and interesting champions like Kog'Maw (destroying his AP Mid in the process). I've seen more new items, reworks and changes in the last year than in all the previous seasons combined.
Normally, this is a good thing but it seems to lack direction or reason and this process just seems to make the game balance more difficult and worse. I'd rather have fewer cool new items or reworks on champions which are fine but get a more refined and balanced game. I don't want LoL to be in a good balance state only for Worlds and if this game is to have longevity, you have to focus less on being "cool" and more on being "good" - which means balance and gameplay above all.
When a game is actually good and balanced, you don't need to make so many changes and most of those changes trying to fight off any threat of decline will just doom it by lowering its quality in favor of glitz. I don't want Riot to go down this way. Some of the most popular sports haven't changed in hundreds of years and while that's not the same as a video game just make sure that you don't make arbitrary changes which will only make the game worse in the next few months. A reputation for quality and balance will matter more than a few new champions or items.