Might I remind you of Prometheus Lens? No way they playtested it if they stated it was launched with a bug. Also I am 100% positive they KNEW about the XP throttling but didn't bother as they thought nobody would find out about it until 2 months later! There is no " It may even look good on their end", They either tested it and left it when it benefitted them or they didn't which would become a mess later for them to fix.