Twist ties suck, but I always assumed they implemented them as an anti shoplifting device, can't rip a toy out of its packaging and shove it under your jumper when its got twist ties.

G1 packaging is superior looking ofcourse, my only complaint about G1 packaging is how easy it was for those non lawabiding kids to steal the toys. I missed out on getting Skullcruncher because the only toy in stock had it's headmaster knicked (probably by Dirge).