The trouble is that once addons are allowed and normalized you will not be raiding without them. At least not in most FC's, they will simply expect you to use them as not doing so means bringing down the performance of the group as a whole. The floor of entry will then require addons. For example, raiding in WoW without DBM is tantamount to trolling your guildmates.

This means console players will be more and more excluded from these activities.

Banning addons is the only option here to avoid their normalization and subsequent exclusion of a large portion of the playerbase from endgame.