Tomas, this is not true, at least with CloudBees you have a delta deployer that makes it a breeze to update your applications as it just sends the delta from the last upload!
I agree, just because you have less friction with IT doesn't mean you suddenly write high quality code with no bugs.
Plug: if you are interested in Java deployment and do not anticipate to write bug-free code just yet, you might want to look at CloudBees: this is not just a production PaaS but it also provides a complete Continuous Integration SaaS based on Jenkins and many other services.