[esailija]

Every single endpoint in a monolith can be deployed and scaled independently. In a single such deployment the rest of the endpoints are just dead code not costing anything except larger image.

Also in many cases work should not be performed synchronously in response to http requests but in a background queue to keep your service robust and responsive. When taking a new order you should just place it in some queue and respond ASAP so there is zero chance you miss a customer order because of some error. In that case there is no difference in scaling a monolith or microservice as you can indepedently deploy 25 consumers for module X events or 10 consumers for module Y events and so on.