After seeing Scott in a robot suit in the link, I noticed theories on why Scott is an expy of Alejandro. We go back to the link where Zoey wanted revenge on Scott for eliminating Mike. She injured him to the point where he was put in a wheelchair. To add more fuel to the fire, she is techinally responsible for putting Scott in a robot suit, just like Heather did to Alejandro in the TDWT Finale.

If you can get the picture, which is in this article, you can see that Scott and Alejandro were injured to the point where they had to be put in a robot suit, because of a Heather and link.

It is more than the designs of Zoey and Heather that makes them similar. It is the way that they play the game, and eliminate the bad people. Like for example, Heather eliminated Alejandro, which resulted him in getting trampled since she threw the pineapples in the volcano, which was unlucky, resulting in Alejandro getting covered by lava. Zoey injured Scott to the point where he had to be put in a robot suit, since she was heartbroken that Mike was eliminated because of him. Adding fuel to fire, she put Scott in bandages, and then the robot suit.

This concludes my reasoning on why Zoey and Heather are alike.

P.S. Chris also had involvement with their revenge. Chris' final two challenge in Hawaii caused Alejandro to be put in a suit since he instructed Alejandro and Heather to throw pineapples into the volcano. Learning that lava and pineapples don't mix, Alejandro got scorched after getting hurt by Heather. As for Scott, Chris decided to get back at Scott, for falling into his (Scott's) traps intended for Cameron, by adding more injuries to Scott's elimination by putting Fang in the Hurl of Shame. Chris was also a major part in Zoey and Heather's cause for Scott and Alejandro being in a robot suit near the end of the season.