The term "rent-seeking" is accurate within the study of economics, but is bound not to be understood accurately by lots of non-economists. It resembles a competing, everyday meaning that is inocuous: buying a property or other asset and renting it out is a valuable service, whereas "rent-seeking" is destructive. The term is economists' jargon that euphemizes the problem. If I were the chief of the rent-seeking lobby, I would want everyone to keep calling it "rent-seeking."
The term "economic central planning" emphasizes that it's fundamentally opposite to free market economics, and that its practitioners and defenders are hypocrites.