1. Google has already made it tremendously difficult for any product of theirs to succeed. They could have a product that’s extremely successful by any reasonably measure, but not at Google scale, in which case they kill it. So the standard of success a product needs to reach at Google is already ridiculously high.

2. Because Google makes so many products and has such high standards, they also kill a lot of products (and services). Which means they’re surely forming a reputation of introducing products to the market that will not survive. Which surely must be a drag on the initial uptake of every product as many people aware of Google’s history are unwilling to invest their time and resources using it. So in addition to the high standards to succeed, there’s also a significant drag in usage caused by the high likelihood of the product being killed.

Both of which lead to more products being killed which leads to future products being less likely to reach success and more likely to be killed and so on.