Well, there's no One True Way for Software Engineering, and certainly this service-based approach can and does work for many, many projects. Obviously it wasn't a complete disaster in Twitter's case.
If I may, I'll employ another Anti-Pattern, Cargo Cult Programming[1]. This means that a team sees some method or 'One True Way' and starts implementing it without understanding why.
It's almost guaranteed to go wrong, and it tends to apply a lot to things that are hip, like this architecture and things like NoSQL.
