Yeah, Arch is definitely geared toward a more technically proficient user base. Their users, myself included, are typically willing to wrestle with changes like that. Recovering a system that won’t boot is almost a rite of passage in the community, since there’s an expectation that you probably built up the entire boot process by yourself, so you ought to know what it’s doing. For some users, that’s simply not true.

For future reference, if you ever decide to switch back, breaking changes or ones which require manual intervention are usually announced on archlinux.org.