I believe so. According to the PKGBUILD of glibc-eac, it not only conflicts with glibc (the package) but also provides glibc (the dependency for other packages), which means it’s a drop-in replacement. Usually, the -bin version is exactly the same, just precompiled, so the same applies.
Btw, I forgot there was a bin version and I painstakingly compiled it every time, thanks for reminding me :3
Also: Don’t forget to install glibc-eac-locales. Gave me headaches when I forgot it.