I think what
@Crazycoaster says rings pretty true, in my opinion. It’s hard to step too far wrong with a B&M hyper; they’re very marketable rides, and while their layouts are often rather similar to one another, that does ensure a certain degree of consistency, which I’d argue that any hypothetical Thorpe Park investment would need. In terms of its intensity, I don’t think people would be bothered if it was a purely fun ride as opposed to an out-and-out intense one, and besides, I’m sure the raw size of the thing would add a huge fear and intensity factor for many. Look at the Big One; that ride, while it has its moments, isn’t exactly a mega-intense force machine, and plenty of people love that and find it intimidating!
I think a hyper at Thorpe would have no trouble being successful myself, given that Merlin are the absolute kings of ride marketing and generating brand awareness; if Thorpe Park were to build the UK’s tallest roller coaster, or a hyper of any kind for that matter, you could bet money on Merlin making sure that the whole country knew about it! It would have adverts being plastered all over TV, it would be all over cereal boxes and soap, it would be everywhere.
Rightly or wrongly, I think record-breaking coasters are immensely popular in the UK, and have no trouble generating popularity and brand image; for instance, look at the Big One at Blackpool and how iconic and well-loved that is 27 years on! Or in terms of a more recent record-breaker at a Merlin park; look at Smiler and how well-known and popular that ride is! If Merlin put their skills in marketing and generating brand awareness to good use, which I have every confidence that they would based on their current track record, then I think a Thorpe Park hyper would be a huge success, and have the potential to make a big splash for both Thorpe and the wider UK industry!