Well they give an option but the whole section is greyed out as You need to click the Advanced install option to make the section active so you can uncheck all of the Delta and Babylon cr4p options.
I was actually checking this out changing between the Standard and Advanced options and I must have clicked slightly outside of the area (not on the next button) and it triggered the process. So it is very pervasive and damn sneaky.
I used adwcleaner to remove it.