Micro services are a lot easier to scale out since they behave independently from each other, you can have different levels of replication and concurrency based on the traffic that each part of your system receives.
Something that I think is pretty huge is that, done right, you end up with a bunch of smaller databases, meaning you can save a lot of money by having different levels of security and replication depending on how sensitive the data is.
This last part also helps with data residency issues, which is becoming a pretty big deal for the EU.
I see, I’m definitely biased towards micro services after years of dealing with horribly made monoliths but I see what you mean.
At the end of the day I think both approaches have pros and cons.