Testing in production is the most idiotic last 10 years or so concept, which is mainly driven by incompetence of project managers.
Imagine if you get sold a car by a company, for 100k, then it starts having major issues and the car company tells you: "we'll fix it".
While that does not necessarily apply to software or services or webapps, the logic still stands. You are selling bugs to people. Bugs that could have been cought, with some risk management and planning.
Edit: F-ing ios keyboard.