The ride started out 1.2m in 1996 as well I think?
They say they have to go with these formulaic 'dark' themes because of market research. No doubt these themes are popular when presented to a selection of the public but then why does the park get such poor feedback from the same people, saying it's dirty, run down, grey and poor? Why do the same people love, for example, nightclubs and other high energy, cool & colourful stuff as entertainment?
The real key reason these themes keep getting chosen is because it's well known a theme that consists of old tyres, junk vehicles and barbed wire fences is far cheaper to produce & maintain.
X is right in the centre of the park and one of the first things guests walk past. If it's going to be surrounded by barbed wire and junk then this could be horrific (plus it inevitably won't look as picturesque as that already depressing promo art).
You then have Saw, which looks identical (surely one of these themes in a park is enough), Swarm - grey and bland for the most part, Storm Surge - broken pipes, scrap vehicle and painted-on dirt, Derren Brown's Ghost Train - from the outside is another uncharacteristic drab, dirtied-up box.
They could do absolute wonders with the inside of the ride, it was always designed to have a preshow walkthrough experience and there's plenty of opportunity for it. It's the kind of 'turd' coaster that would actually be vastly improved by VR or effects too. But the theme will surely be just another flash in the pan, unimaginative IP, which will end up looking like Saw Alive and Im A Celebrity.
When they redid X a couple years back as a fun, colourful and loud family coaster, it was really well received despite being just a low budget polishing. It took the right approach again.