Tbh it's not much a surprise that Merlin is run so centrally. All their UK parks are now all exactly the same, just with different colours and demographics. Sometimes the similarities arent intentional, like their operational problems
In terms of development, well really the park management is just there to operate the park, maintain it and make money. They should input on the operational and marketing side when new developments happen, but they wont have their own developers.
A typical park might say 'we want a new launched coaster' or sometimes just 'we want something for this space'. Then the park would appoint a team to develop it for them, with an external developer to pitch ideas and make it happen. That's pretty normal in construction worlds.
What Merlin does is have MMM to basically keep all the development processess controlled. The actual design might still be freelanced, but planned and controlled by MMM. In theory this could be a good thing, but I think track record proves the whole system is pretty bureaucratic / dysfunctional. No doubt there are talented people doing what they can in MMM and sometimes a good ride pops out. But look how out of touch developments can be, like Thorpe Park getting the most expensive to maintain, faulty ride its ever had, when Thorpe dont even get the budget to maintain such a thing.
It’s funny how as a society we’re getting better and better qualified, at least in terms of how many years of education we’ve done, but more and more employers are centralising decision making so that workers and managers are just following a series of checklists and processes. For people who are creative, or who want to feel like they’re making a difference, many large organisations do become a straightjacket. Merlin are working with at least a couple of universities (one in the UK and one in Germany) to sponsor theme park management degrees, but what they’re looking are for people who are good at unquestioningly following rules and plodding through checklists. No wonder Linked In’s full of Merlin employees who are trying to go free-lance.
I think you've got the right general idea but maybe you're jumping to a few conclusions? Who's to say we're more educated to manage theme parks now than before. A university degree in this kinds of field is a starting block, but the real learning always comes from experience. I wouldn't say it's a surefire sign that there are better managers today than before. And I dont think you can gauge a whole picture from Linkedin.
A bigger difference will be what Merlin pays their managers and what experience/background do they hire. Merlin's senior people are usually always FMCG marketing based and their creative directors often straight outta uni.