they've become more comfortable as they've become more successful so are simply not as excited in dominating slots. I find Yggdrasil so have better game features, and better features and functions to promote their games, and I was surprised Netent did not come up with something like that yet. Also, Netent network promotions have lost all creativity, either it's a promo for only the more valuable UK or Scandinavian players, wager this much to get a ticket in the draw....But they can care even less, one of the last NetEnt network promotions was a request for all the participating Casinos to send them their promos on a new game, Netent will pick the winner they like and give them a €10k prize pool.
If they were doing bad, they'd change things, but business is still good for them so why change something that's not broken?