[Too]

If you've got a pre merge build check you can't break global build in a monorepo. That's the benefit, the one introducing the breakage will get a fail in your CI. There is no need for other teams to catch up.

By doing this you only ever "step" a dependency one at a time and one minor minor version at a time, so you only get very few and very small breakages each time. Instead of locking your depfile and then 6 months down the road you realize you need a security fix in component foo but then you got 1000 other backwards incompatible changes to fix because of transitive dependencies that also need to be upgraded in order to satisfy foo 1.2 dependencies.