that's one interpretation. another interpretation is that he was a big player. he was second in command of Bagalia to Taskmaster. the two of them were Madame Hydra's personal security. then they were both Captain America's handpicked Avengers. Eric is the one who captured Rick Jones. Taskmaster and Black Ant also freed the Champions, during the final battle. if they are going to keep having Taskmaster pop up in conjunction to Secret Empire, why wouldn't Black Ant also be there? again, Castle is gunning for the remnants of Hydra. Eric was following evil Steve Rogers. Ghost had no connection to Secret Empire. this is common sense.
how so? by being invisible? by being able to nerf an armored individual? can Ghost grow in size?