All Dassault products are too expensive! I think that is their greatest drawback.
I don‘t understand that as well. However, since its rather engineering software you should not underestimate the spread of legal licenses. Especially in Central Europe there are thousands of companies using Catia and many of them do not earn billions. Even freelancer get access to it because they get a temporary license from bigger companies.
I think its not bad to demand a high price for a very powerful or specialized software, its just not right to demand annual fees without any real benefit! But this is not only a Dassault specific problem.
In addition to that, I think the biggest problem of a „designer“ is the acceptance for the complexity and difficulty of his/her work. I mean there are millions of self declared designers out there 
At least many don‘t see this equally demanding as engineering. I believe this lack of acceptance is one reason why designers and architects have so much trouble nowadays; why they having trouble enforcing high salaries for design services and as a consequence cannot afford overpriced software.
Another aspect, since „cheaper“ CAD progresses day by day, the return of investment for highend software gets smaller and smaller. There are so many examples: Rhino - Autocad, Solidworks - (basic) Catia. Alias - Icem Surf with Modules, Affinity - Photoshop/Illustrator, Blender - 3dsMax/Maya etc…
Same for XGenerative or Dynamo. The only reason to switch over as a design engineer would be when having a real benefit. One reason: having access to a better geometrical kernel, but that means having access to all advanced functionality. In my current specialisation it might be an attractive alternative. I‘m just pretty disappointed by Dynamo for Alias…