Yeah, the faster but is also a bit of a non-seller, they have to integrate the world/deal with bad build times that can't easily be parallelized (what if there are no modular dependencies, that your tool can understand?) except by tools that have nothing to do with their product.

But there have been many times when debugging a CI has been necessary, having to figure out what has gone wrong on a remote system is often an issue...ofc often the remote system is itself the problem...