This seems like a fairly disingenuous comment.
SpaceX gets credit and rightly so because they have achieved things which no national space agency nor private company has ever done before, and done it faster and at a lower budget than anyone has done before.
Every other national space agency and private company had both infinitely more money, time, and engineers than SpaceX did (when founded) yet they were making zero progress on reusable rockets, cheap super heavy lift capacity to orbit, and America had no way of taking their own astronauts to the space station!
Musk (hate him or love him) founded a company from nothing which has exceeded the capabilities of nasa and the us government, the European space agency, and the russian space agency, as well as ULA, Boeing, Lockheed etc.
They have the first rocket ever made which can take payloads to orbit and then be reused. They have the most cost effective rocket ever made for taking loads to orbit. They have reused rockets up to 20 times! They have build the most powerful rocket ever built which is fully reusable. They have built the most efficient and powerful rocket engines ever built before. And they have done it all incredibly quickly starting from nothing.
Oh and they also built a massive internet constellation providing fast and cheap satellite internet to the whole world, saving countless lives and also helping stimulate economies across the world as well as enabling more remote work etc.
So much of what they have done was considered impossible or not economical or not practical or so difficult other countries or companies didn’t even TRY.
So yes. Given their success it’s worth trying to understand their development methodology, which is iterate fast and fail lots and learn lots. Given how much they’ve kicked the shit out of the SLS program in capability and budget and also how they’ve crushed Blue Origin (which started earlier with more budget) who both operate in a more old fashioned way, I would certainly say it’s important to acknowledge they may be doing something right!