The events are to frequent. There's not enough time to rebuild for the next. A better solution is to have kvk and kvkr once a month and cvc every other week. Maybe the developers could create a global capital that only level 26 players are able to battle for, once a month. That gives their respective kingdom rewards just for taking control, and for holding. 

The issue is not the number of events, it's the game play.  If people/clans don't want to participate in an event they can throw up a shield and sit out of .

The issue is that throwing up a shield and training troops etc is more beneficial than fighting. That's not what this game should be about and something needs to change.

I'll have to disagree with you. More points are gained by attacking. People sit out usually because they just went all in, in an event about 24hrs prior. But that's just what I've seen. What would I know. The points earned from invaders aren't going to change. That's how the developers earn money, from people buying packs. I would add that most clans feel the cvc rewards are the most beneficial. Having them apart more will fuel the need to winning. Possibly creating more attacking.