The ways the enemies have to avoid OAs most freely at the moment are mostly Larian homebrews, and other games that manage a fully 3d fighting environment and allow for proper realisation of 3d movement spells like fly and levitate do not have any really issue with melees being left redundant. They have some situations they may struggle with, sometimes... just as every specialised class can and should, but overall, it's not a problem.
Make no mistake: Larian WILL implement flying abilities when we get 3rd level spells. Unless they do it properly, however, it will absolutely come out of the box just like 'flying' abilities did in D:OS2... which means it absolutely will be everything you're afraid of in the above post, without any of the actual benefits of a 3d flight system. This is a call for them not to do that, and to do it properly.
