Ingress to the chapter said:
The ship design rules covered in previous chapters cover a broad range of technologies, up to around TL15. While technology beyond this is rare in the Third Imperium, it certainly exists and in other universes it may be common to the extent of ubiquity. This chapter introduces a
range of new technologies that can be used as part of the design process to create some truly awesome ships.
Nothing here says: This must be banned in Traveller, or the basic assumptions of the campaign will break down.
Note that Hyperdrives and Space Folding Drives are available as Early Prototypes at TL15. Collectors are available as standard issue, and will be default from at least TL13.
THIS CHAPTER SHOULD BE BANNED UNLESS THE REFEREE (or a campaign book) SPECIFICALLY ALLOWS IT.