A lot of the complaints about the relative ease of BE and the lack of interesting AI can be reduced down to this: the victories don't have you go up against the AI, unless a race counts. You can just bunker down and create your thingymadoodle that gives you your victory in four out of five victories. Compare that to Civ V, where even if you weren't doing domination, you were very regularly involved with the other AI: for Diplomacy you needed to outbid them on city-states and influencing them for votes, Culture required you to go up against their culture with their tourism and be fast with your archaeologists and wonders, and even Science allowed you to spy and have Research Agreements. But in BE, you don't really need AI at all - they might as well not be there. To add to that, most victories are just looking at an arbitrary number tick over (Transcendence especially is horrible at this), which then suddenly turns into a "You won" screen - that's incredibly unsatisfying. BE could really benefit in some ending movies or the like to really drive that victory home, because unlike in V there's very little satisfaction gotten before the victory itself (i.e. "we're wearing your blue jeans" or watching that space ship go). It's frustrating to end the game at the point where you really want to see what happens next.