Ever see those people who bid $1 under the previous Price is Right contestant? Or ever see that competing brand hotel billboard right after the first one advertising additional amenities?
Some people believe the race to the moon in the '60s was a marketing attempt to get one or the other side to expend time and resources outside of strategic Cold War conflict areas.
Likewise, a competitor, armed with specifics on distribution may attempt to preempt or undermine Glowforge sales/marketshare just ahead of any announced schedules.
This is my personal speculation and opinion. It’s only a possibility. However, any bit of information (or disinformation) may be all a company might need to ride ahead of the wave of its competitors.