[wmf]

allow side-by-side installations of multiple version series and multiple configurations

So now every app requires a different library version and you've achieved all the disadvantages of static linking combined with all the disadvantages of dynamic linking.

[hi-v-rocknroll]

No, you're being unreasonable because that's not the goal at all. The goal is to minimize variations while still allowing the possibility of variations that traditional distros like dnf/RPM Fedora/RHEL disallow without jumping through hoops such as renaming/prefixing or alternate toolsets like scl.