Not the power deficit though.... if you go first drone, then you MUST build 2-3 pgens before your first factory or else you power stall so hard you can't do anything. If you do a couple pgen and then drone, your acu does not get to front fast enough. No matter which route you take, your hydro is put off till later and your expansion is slow. Point is, if you lose hands down to someone using this build, you need to find another build to counter it. Additionally, if you go first drone your score is VERY VERY low. If you see that happen vs a UEF front player, simply build an AA unit first from fac and you can shoot it down before it gets done reclaiming the second destroyer. That is pretty easy to do
Point is, this is not an exploit. This is an oddball unit used effectively, and it can easily be countered. Don't make yelling "exploit!" on the forum your default reaction to meeting a new strategy.