There are 2 problems: The coffee machine doesn't work, AND it doesn't match the kitchen. Possibly 3, the machine is high maintenance. In your comment, you neglected 2 of those problems.

Yes, there's a bug in the production services, but maybe it's a nightmare to maintain and there are more and more bugs creeping in and a microservice might help make it more stable - and maybe the developers want more experience with new tech to grow professionally as well.