Yes. You can confirm this by looking in the framework code. frameworkSupertype.cfc (which your event handlers etc inherit from) has this line:
and if you look in the bean factory plugin (/system/plugins/beanFactory.cfc) you’ll see it is just a facade now that calls wire box like so:
The original beanFactory is still around in version 3.0.0, but only for a limited time to support CF7.