Looks to me like another case of someone with insufficient knowledge of the consequences of their actions. I'm sure whatever department implemented this new service considered it a minor thing, and well within the scope of the rights of their own business - and didn't bother to check with the more technical departments that really understand DNS and the issues surrounding it.
If this was the case, I think it would be unfair to blame the company as a whole, except insofar as a company with that much responsibility can't just let any old internal team have access to make most major changes.
If this was not the case, and they implemented this service with full knowledge of the consequences... that's a lot more malicious, and God help the Internet if they keep doing stuff like that.
There should be some sort of standard practice for approving who gets what access to these central, vital, services. I mean, if someone bungled things up too badly and crippled or turned off .net/.com dns redirection for even a relatively small part of the country, imagine the economic impact on business that rely on the internet for their business.