The subscription model is better then SS in my opinion as it ultimately promotes readers to read a larger volume, variety, and quality of novels. With the SS model it locks users into a mode of only justifiably wanting to spend money for the novels they like best. QI is right that the most popular novels would likely make less with sub then with SS, but sub is better for the less popular novels and that promotes more translators in the community overall due to increased scope/volume of readership. QI should just be adjusting the allocation function to better align with the allocation of money from SS if they have an issue, not cancelling the program entirely. They have all the data for viewer and word counts to get the allocation as they want it.
Another turnoff with the SS model is how much it ends up costing. I don't know about other people but I am extremely put off when encountering a paywall of hundreds of chapters; whether that is due to not reading a novel for a while or picking a new one up. I can justify paying a premium for the latest chapters but not paying full price for chapters months old and am inclined to read, at least until caught up, from bootleg sites. Currently SS prices are far too expensive which when added up far surpass what you would spend for full priced books on Amazon. Even the subscription prices are already too high if you look at competitors such as Amazon's Kindle Unlimited or even alternative entertainment like Netflix both for $10/month.