This is not correct. cpufreq-utils will not installed automatically. The default cpu governor is performance without installed cpufreq-utils because many users have complained that the want low latency insted of powersave. (On many systems it make nearly no difference in power consumption at Idle state but it was measurable higher latency in on demand mode.)
If you install it cpufreq-utils it will set to on-demand at next reboot if the cpu support this.