It's something to keep an eye on, particularly in the lunch sandwich space. Two brands doesn't make total control in that industry, but should they try to buy another one, that might need to be blocked.
Agreed, this is not an acquisition that is good for the consumer.
Does this mean that you are opposing Cobrands also ?? Yum! Brands is renowned for it. If you wished to block the attempt of merger or acquisition with Arby's and Subway, perhaps this should have been opposed ?? I also probably did not wished for Carl's Junior and Herdee's Senior to be the same company now. However, some times cobrands might be necessary. Example if Grandy's and Kettle cobranded, perhaps more peoples would know much more about them.
I don't care for how Yum! has run most of their brands over the years. Generally, I'm not in favor of cobrands, and where they apply they should not by something like Arby's-Subway where each stands on its own well.
The only cobranding I think works well is LJS with A&W, KFC, etc. because fast food fish is not everyone's thing so having an alternative menu in place does help drive traffic.