First of all, this isn't new by any means. A company no longer in business by the name of Goldwin Golf brought out a driver in the late 90s that had a total weight in the area of 285 grams.
Second point and by far the most important one, - no matter what ANY of the OEM drivers or clubs professes to do or be in their design technology, the OEM's models are nothing more than one size fits all offerings.
In this case of the very light total weight driver, if ALL golfers were well below average in physical and golf swing strength, with a very passive and smooth transition and tempo, and with a square to inside out swing path with a later to very late release, then and only then could you say that a company that makes a very light total weight driver would be applauded for doing so.
Why? Because that is the only type of golfer who would be considered to be well fit into a driver that weighs less than 300 grams and is also 46" in length.
As we all know, golfers come in all manner of strength and swing characteristics. Thus it is very important to understand when you look at ANY new club model from the OEMs, what you have to do is look at what type of golfer characteristics would be best matched to all the specifications of that club. Those golfers who deviate from those playing and swing characteristics would be wasting their money to buy that type of driver.
In the end, since golfers are so different in their combinations of size, strength, athletic ability and swing characteristics, the only clubs that are ever going to allow each golfer to play to the best if their ability will be clubs that are custom fit for each specification to each golfer's individual size, strength, athletic ability and swing characteristics.
I hate to keep sounding like a broken record on this, but until golfers understand this, they are going to continue to be drawn to any new club model the OEMs bring out and from that, will never understand that custom fitting is the only way to spend their money for clubs.