Yes, but I think the complaint here is that Google requires OEMs to install a wide swath of their (unrelated) apps in order to have the Play Store/Play Services, which are a large part of what makes Android into what people actually think of when they want an Android device.
Without Play Services, you end up with something like FireOS...
It's this as well as a few other things, such as now allowing manufacturers to release a combination of devices that are Google-blessed Android and Android without Google. Either they get on board with Google 100% or they get nothing.
It should also be noted that this isn't just a case of Google being evil, because they do have some good reasons for doing what they do, the primary one being that the manufacturers were notorious for poor support to the great annoyance of Google.
Personally, I think Google should be able to say that if you want to use the Play Store, you also must include their other apps. What I think Google should be prohibited from doing is telling manufacturers that if just one of their products doesn't do things Google's way, then none of their products get the Google-licensed version of Android or Google's services.
Some of the manufacturers or carriers might test the water with such an opportunity, but I think most will find that Google's services are better than whatever they themselves might create and that customers will appreciate that value more.