Normally I'd say yes, but one of the core Cedar stack engineers is a close friend of mine and I've been over at Heroku a few times to nerd out over beers. Given my conversations with him and other engineers about the designs I can guarantee to you that (1) Heroku is extremely autonomous relative to Salesforce (I bet you most of SF's influence is on the BD side of things and not on the engineering side. In fact I doubt they have much influence on engineering) and (2) there was no malice involved. Like any engineering first organization, they probably spotted an opportunity to innovate on efficiency and optimize a key process. Problem is that in this case v1.0 of their solution turned out to be a dud and they probably didn't have the instrumentation needed for this new approach in place to detect and prevent these issues. They may not have been measuring the all the right things so a modification detrimental to performance slipped through the cracks;
I think all this drama is a great opportunity for Heroku to bring out a new stack for non-concurrent apps with an intelligent routing mesh (v2.0a, perhaps). If I were you I'd go for another beer with the Heroku engineers and design/prototype it.
