No, it was just that there was no operating system for PPC. PowerUp/WarpUp were only kernels making it possible write PPC software but in practice PPC was not more than a co-processor. With more development, time and money it could have been better but it was little too late for that.
There were weird software issues, too. At least when using WarpUp kernel mouse pointer occasionally froze for few moments when running demanding PPC software.
