Rather, the idea is that you can install packages from just about any other distribution, including things which are typically seen as mutually exclusive. The majority of the system can be comprised of packages from something known to be stable like Debian or CentOS, while still having easy access to things like packages from Arch (including Arch's AUR), retain extremely good library compatibility with popular Ubuntu for precompiled non-distro-provided things like proprietary software, and still get to leverage the flexibility tools like Gentoo's portage provides.
So, yes, you could use binary packages unless you need to build from source - Bedrock Linux can fit that design if you want it to work that way. That's a perfectly fine way to use it. But I would frame that as one of a number of ways to go about things, as the system is quite flexible.