Question #2: Why did Google come out with their own solution that has matured in the vacuum instead of involving the community earlier on? This approach at best fails and at worst fragments the market further.
Observation #1: When there are two very established solutions in the market, Sass and Less, you need to point out why these two come up short and why you are coming out with something new. Simply stating "we have a Google version of the tools you already use with the same feature set" isn't a very compelling sales pitch.