Sony is the loudest entity claiming that this merger will hurt their ability to compete in video games. They absolutely need to show how this is possible especially when they continue to post record profits and growth. Sony interjected themselves into the process as soon as the acquisition was announced. But yes its only 'in my
mind' that Sony has put themselves front and center in this process.
You'll notice MS has not made any requests from Nintendo to provide information about their business. That's because Nintendo isn't trying to stop the acquisition they in fact they reached an agreement with MS and stand to benefit from it as well as many other parties. Even Sony was offered the same deal as Nintendo but of course they did not respond and quite possibly could be
lying about the details of thr deal to regulators.
The are implying this acquisition could cause consoles to be more expensive when Sony raised prices already in the UK and it had nothing to do with this acquisition. It is pretty silly.