More or less, yes. You get OpenSSH for free; you are not paying for it, and not paying to support its development. Critically, you are not paying for its developers to support old, obsolete, broken cryptography. Keeping DSA would be an added maintenance burden that the OpenSSH team just isn't prepared to continue taking on.

If there's a wide need for it, hopefully everybody won't maintain their own fork; all that's necessary is people band together and maintain a single fork.