"We'll be an aggregator, but a good one"
You can't be a good aggregator.
The problem is the aggregator part!
The emergent drive of an aggregator is to absorb all engagement.
A gravity well that the ecosystem can't escape, but also the organization controlling the aggregator can't escape.
For the health of the overall ecosystem, a non-aggregator is much better than an aggregator.
Unless someone can figure out how to do an open aggregator.