I don't think this will necessarily be the case, Icon's layout is much longer than Star Trek Operation Enterprise (which almost seems to be over before it's started) and is overall a much larger project.
The low-to-ground turns and airtime moments should hopefully make for a thrilling ride, and if Taron (which consists of turns and airtime hills as the main focus) is so highly regarded, why shouldn't this be the same - in theory of course! Throw in the near-misses with other coasters and hopeful effects & features, and I don't think it will be disappointing.
I do have my reservations about Icon and don't think the launches will be much to write home about, but as an overall coaster I hope it'll be great for the UK.