This ending is probably the least popular among the core fan base of this game. It sees all life somehow magically changed into a new framework a new DNA where there no organics and synthetics anymore everyone is the same. It even appears to me that the galaxy seems to be brainwashed cause if Wreav is still alive even he now is a good guy. This could be because there’s no reason to fight but it should not change who you are it seems stupid to even consider that. It has been seen that synthetics and organics can be peaceful without this option. For example EDI is a Normandy computer that puts her self in a machine body but is not hostile and will obey Shepard and fight the Reapers to the death. If you manage the Geth and Quarians to be union on Rannoch which is hard to do unless you took all right steps but in this case they are working together once again and it seemed to working to me despite the logic of the Catalyst being. The future of the galaxy seems to be simply peaceful but what does peace mean to a cold AI?