Micro-credentials were the culmination of several ed tech developments, but there is also a sense in that they are driven by these very developments in order to validate themselves.
📑 25 Years of EdTech: 2019 – Micro-credentials

In short, micro-credentials represent the latest chapter in the attempt to make the shape of higher education more amorphous and flexible. In this, I am in favour of them, because if you want education to be inclusive and diverse then it needs to come in various formats to meet those needs. Whether micro-credentials are the means to realise that, or another attempt to bend higher ed to mythical needs of employers which turn out to be ill-defined and unwanted, remains to be seen.
Martin Weller
series discussing the in higher education. One of the points that really stood out is the idea of credentials as validation of online learning: