It'd be really funny if this was still in that continuity because it would be the most hilarious case of "Random shit from Cybertron always winds up on Earth." Off the top of my head, in completely isolated incidents
-Chosen as the site to produce Transformium (TF4)
-Chosen as the site to build the Star Harvester, leading to the Matrix and the seekers being on Earth too. (TF2)
-Chosen as the site to summon Cybertron to for repairs, leading to Sentinal Prime's ship crashing on the moon (TF3)
-Final resting place of the randomly launched Allspark, leading to Megatron getting stuck there hunting for it. (TF1)
-Also happens to be have always been Unicron, possibly the reason the Knights of Cybertron chose to hide on the planet with Quintessa's control staff. Or that might just be a big coincidence. (TF5)
-Also apparently Earth has been a hotbed of Transformer activity throughout the ages, including Bumblebee and Hot Rod mucking about in WW2. (TF5)
-Chosen by Optimus as a potential refuge for the Autobots, leading to Bumblee to arrive in the 80's, followed by (TF6)
-And now apparently the Maximals have just been chilling on the planet for who knows how long and now there's also a non-Earth Unicron. (TF7)
And that's all stuff that happens prior to the 2007 movie!
Earth is cursed.