RPI3 native AUDIO OUTPUT

Hello everybody, I have really simple question. Is there any reason or clear explication, why Hassio do not support natively RPI’s audio output? Why we have to set third party server - modipy (am like, u r kidding me?) And when i try to install the simplest addon found on github, I get this err (am like, u r really kidding me?):

ALSA lib dlmisc.c:283:(snd_dlobj_cache_get0) Cannot open shared library /usr/lib/alsa-lib/libasound_module_pcm_pulse.so ((null): Error loading shared library /usr/lib/alsa-lib/libasound_module_pcm_pulse.so: No such file or directory)
[Error] Playing failed -> 

Thank you very much! Home Assistant is really nice peace of work! Well done guys!