Exclusives arent necessarily a problem.
For example I dont thing Naughty Dog, Guerilla and Playground Games becoming first party had a negative impact in the industry (unless there was a way to predict a negative opportunity cost for the future which is impossible).
These developers were primarily supporting a specific platform and ultimately became part of the company that owns that platform. That doesn't change much. It
only maintains the status quo or
generates new exclusives for differentiation.
It is a problem thought when they are a result of massive buy outs of third parties that were originally supporting various platforms or used to develop for a competing platform. That creates differentiation by
eliminating content on a competing platform. Thats a hostile movement that as an economist would not see positively.
The point of healthy competition (I despise the word healthy and competition in the same sentence
) is to encourage companies to create new technologies/products/services but not to eliminate access/prevent access that would have otherwise been available to other businesses.
Thats against the conditions that allow an unregulated market reach the maximum potential for all.
These are similar phenomenons that Adam Smith despised in its time.