Is it necessary to call TextToSpeech.shutdown() in the onDestroy method?

Question

Android

The documentation says that you need to call TextToSpeech.shutdown () in the onDestroy method of the activity.
Is this a must?
The problem is that onDestroy is called every time the screen is rotated and the speech synthesizer needs to be re-initialized every time, and this is a few seconds of delay ... How to solve this problem?
Prohibiting the re-creation of the activity is not an option, I need it, because. different layouts are used for different orientations.