In (some) fairness to IBM, Raptor systems -- despite their cost and their visibility -- are considered the "low end" of the OpenPOWER ecosystem. IBM makes their money on their big institutional partners who don't care much about the things we do (openness, auditability), and it's more important to IBM to give them a new performance shiny to keep them in the sales-and-service fold lest they jump ship for x86. If this was what got them to market quicker, then we lose out. That's just the way the business is.
That said, IBM has also taken a bit of a black eye over Power10 as a result and because Raptor systems *are* so visible, it's harmed their secondary goal to make the architecture more generally relevant again. I think this will be factored into Power11 but there's never any guarantee.