Well they are really going to destroy their 17M ship goal if VG sales is already giving it well above the 17M.
My guest is that they knew it, so they want to produce a positive surprise to make rebounce the share. Besides this, announcing 18M was very risky then if they would end at 17,8 or 17,9.
Current PB on Secret of Mana remake : 2h27 (2nd)
Strongest worldwide achievement on TGM : 1st European S13 rank
WR on TGM alternative mode : Fastest ITEM S9 rank ( <-- Just got massacred by the 2nd most powerfull player in the world )
Current PB on Power Ranger (Game Gear) : 10min06 (World Record)
Non-geek activity : ThermalHungary