I like that they highlight the tradeoffs between isolating faults and optimizing resource utilization. However, you don't need microservices to achieve isolatio

I like that they highlight the tradeoffs between isolating faults and optimizing resource utilization. However, you don't need microservices to achieve isolation. You can have different worker pools of the monolith configured to handle different destinations. The monolith actually gives you more flexibility in how you approach the tradeoff. With microservices you're forced into one pool of workers per destination, but with the monolith you can choose any mapping of pools to destinations that makes sense.