On one hand, this suggestion stands in opposition to HN rules (link to source) but on the other is more reasonable as linking nitter provides viewer with more information, as an addition to single post that non-registered Twitter users would be able to see.
Considering HN is a YC thing, the useful feedback at this point might be that X isn't the best outlet to reach audiences anymore, and maybe they should post it somewhere else.
It is like suggesting that the link on a paywalled article be changed to an archive link without the paywall. That isn't the way HN has decided to operate.
Instead, users get taught to visit the comments first and upvote a comment with that link.