Collin Funk [off-list ref] writes:
quoted
So the only effect it would have is to smoke out truly slow platform
maintainers; if their users are happy enough with such slow upgrade,
they have lived and they can live with versions of Git that are
years stale that we no longer care about.
For what it is worth, Gnulib and threfore Coreutils, among others, began
using compound literals in 2017 and it seems to have not caused any
problems [1]. Even 'pcc' supports them.
Thanks. Our worry however includes platforms outside the Open
Source and/or Free Software ecosystem, which would not be helped
very much.