I don’t think so. You just want to pick the right tool for your system. With modern uefi boot systems, systemd-boot is simpler and quicker. There are use cases for grub, such as if you have the kernal outside of an efi partition.

Systemd-boot is my personal preference, boots fast, is unintrusive, and you never have to rebuild anything to make changes.

In the end, everyone is free to use what they want. That’s the beauty of Linux.