So it's not the first time I've seen a sentiment like this in review comments:
However, even that won't be correct because of the hateful,
hateful sign-in-from-the-sign-up-view feature.
Although perhaps never expressed quite so elegantly before ;-)
This "signin-from-signup" business is an expensive feature - it adds a lot of complexity and it complicates a lot of metrics analysis. We should take a look at the metrics and re-assure ourselves whether we're justified in keeping it and continuing to pay these costs.