Watching this thread... Keep it civil.
Everyone can have their own opinions, but in the end the only opinion that really matters is Blizzard's. Just because an addon is possible, doesn't mean that Blizzard wants that addon in the game. This will not be the first time that they have decided a certain (type of) addon goes against their vision. And it will not be the first time that they have purposely disabled or broken such an addon.
There are many QoL features that have been added (or made possible to be added by addons) that will not be in Classic. This is not the only one.
/edited to add: Those on the anti-LFG addon side need to tone it down a bit, too. Just because Blizzard agrees with you doesn't make your opinions more important than others'.