User blog comment:Cristina7/Introducing Discussions, a New Platform For Engaging Your Community/@comment-5275700-20160909212124/@comment-1370845-20160909220152

"If Discussions ever evolve into something as useful as Forums, then you should proceed with the migration. Not before. Not like this."

Had you read beyond the first few sentences, you would have discovered that they know this. From the post that you deliberately ignored:

"We always understood that additional feature development would be needed before some communities could be migrated to Discussions. Migration will be a slow and deliberate process."