I am fairly sure all I got from that response is, Players are obtaining drops faster then we anticipated we will be making adjustments to reduce the rate the rare items drop.
Yeah the drop system is horrible but a lot of people are still getting top tier drops too quick, more than they planned. Next update might just kill VW completely, it's already pretty horrible.

VW is actualy quite a success even though the drop rates are horrible, as such it makes sense to decrease drop rates asap to keep people doing it long term.

Not a suprise with this current dev team but still kinda sad. Oh well.