The EVgo CHAdeMO adapter boxes uses extended length cables that I presume they got from Tesla. If charging networks approached Tesla saying they wanted to add Tesla connectors and to buy some cables, I'm not sure why Tesla would say no.
As for the other terms, Elon has said if automakers want access to the supercharger network, they need to pay upfront for network expansion costs, which I don't see as outrageous either.
The last bit is about using Tesla's patents. I presume this is where the "outrageous" part comes from. Basically for large companies, the sticking point is they can't freely use Tesla's patents unless they also give Tesla free access to their own patents (and also can't enforce their own EV patents). However, for new companies the terms are actually quite favorable as long as they aren't trying to be blatant copy cats (some companies in China have taken advantage of Tesla's patent pledge for example to make battery packs based on 18650s, I forgot which one, but might be JAC, and they have not gotten any legal trouble from Tesla).
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However, if the companies work out agreements with Tesla to just buy the connectors and sockets from Tesla (or to pay for supercharger access), they don't really have to deal with the patent side, so I think that part is just a red herring.