Why is a PIPE necessarily quicker than a deal? If the deal is imminent, it requires the same signatures as a PIPE, no more or less.
Deal takes two sides to agree not only on value but what is included in deal. PIPE is solely $$$ and a company like R&R usually has venture capitalists in waiting especially for a deal like COR's where in all likelihood most if not all investors will be putting in less than 5M if the past history means anything.