If you just install 1 msi package then no. If you install multiple, like for instance for multiple architectures or you also want to install all the monthly releases, then the QFE Installer is still handy for unattended installation.
The msi installer now also supports unattended installation through command line options, but the QFE Installer also makes sure the QFE's are installed in the right order (from oldest to newest, NOT based on the file date/time but based on the "encoded" release date in the file name), so yes; the QFE Installer remains a useful tool if you install multiple QFE's.
RE: is QFEInstaller still required?
If you just install 1 msi package then no. If you install multiple, like for instance for multiple architectures or you also want to install all the monthly releases, then the QFE Installer is still handy for unattended installation.
The msi installer now also supports unattended installation through command line options, but the QFE Installer also makes sure the QFE's are installed in the right order (from oldest to newest, NOT based on the file date/time but based on the "encoded" release date in the file name), so yes; the QFE Installer remains a useful tool if you install multiple QFE's.