I get that but having an overall planned arc would be preferable to nothing. Some threads are never even mentioned for example we are told and briefly see in a flashback the knights of ren in TFA but they get no mention or are seen at all. It is like they literally vanished from existence.
Personally I was surprised by how people reacted to the Rey “reveal” because it never seemed like a legit reveal. Kylo could have simply lied about her parents as he was trying to get Rey to turn. Not to mention they had Snoke prompting them through mind tricks affecting the bond.
Honestly I was expecting her to be Luke or Leia’s daughter. After all.this is meant to be the end of the Skywalker saga so I was expecting a Skywalker v Skywalker fight possibly taking ideas from the EU. Although my knowledge of it is limited I was away of the Solo twins one going dark side.