In the very least, it will open up FTEs that can now work on what makes Mozilla projects unique, rather than on building and maintaining generic fundamentals.

In the very least, it will open up FTEs that can now work on what makes Mozilla projects unique, rather than on building and maintaining generic fundamentals. It's a pet-peeve and personal frustration of mine. "Do one thing and do that well" is also often forgotten in this part of Open Source projects. You are building a free alternative to slack? spend every hour on building the free alternative to slack, not on selfhosting your Gitlab, operating your CI-CD worker-clusters or debugging your wiki-servers.