Because huge chunk of municipal IT infrastructure, processes and procedures depend on Autodesk's solutions. I don't know whether you're aware how state administration works on local level in EU, but it's very much about cadastre, urban planning, architecture, civil infrastructure, building permits, etc. That's, generally, their basic source of income.
Funny thing, but this discussion reminds me on decades old rambling on assembler programming techniques. IMHO, the whole "paradigm" will get rendered obsolete by smarter CLIs being able to automagically;-) interpret parts of code to fit multicore architecture. This is, after all, one of the features of CLI layer anyway (beside portability) - to conform to underlying hardware with minnimum or no programming efforts.