For something run relatively infrequently, I can see why it wouldn't be a huge priority.
On that topic, I wish there was a generic build system like SCons written in something faster. Maybe there is (does Bazel fit my bill?) and I just don't know of it yet. What I love best about SCons is that you can just write custom builders right there. No need to drop in a shell script - you have the much better Python standard library at your fingertips. This also means it's way easier to make cross-platform.
On that topic, I wish there was a generic build system like SCons written in something faster. Maybe there is (does Bazel fit my bill?) and I just don't know of it yet. What I love best about SCons is that you can just write custom builders right there. No need to drop in a shell script - you have the much better Python standard library at your fingertips. This also means it's way easier to make cross-platform.