Board Thread:General Discussion/@comment-28452300-20170120222338/@comment-32788838-20170121025229

Bites the Dust does not really count as a Requiem Stand to be completely honest; it does not fit the trend set by the other, actual Requiem Stands in the series. For one, in both instances, the Requiem Stands seem to possess a consciousness or sentience of their own - as shown when Chariot Requiem completely separates itself from Polnareff and affects both friend and foe while it's implied that GER functions without Giorno having to command it anymore - and they both undergo significant aesthetic changes.

Neither of these traits show themselves in Killer Queen BtD, as he remains the same both appearance and behaviour-wise after Kira is pierced with the Arrow. The Arrow is also not the same, the Requiem Stands themselves were pierced and not the user, etc.

In any case, you're completely misreading a lot about Made in Heaven and Requiem Stands. Requiem Stands cannot do everything, they still have set, niche functions as Stands normally do and something as basic as "Platinum Requiem controls time however it wants" is too basic for Stands that are supposed to be as complex and complicated as Requiem Stands. If anything, maybe Platinum Requiem would have the ability to affect gravity and accelerated time, maybe it could have found a way to keep up with Made in Heaven, who knows? And if we're talking about Requiem Stands being situational, Platinum Requiem would likely be oriented more around "save Jolyne" rather than "defeat Pucci", as he chose her over him in the climax.