So, in case that one wonders about needing to watch this episode with the previous ones in mind, while this episode needs some plenty of context in order to understand what´s going on, one has to keep in mind that the episode is...actually quite simple to follow because of the clear plot device. In addition, we are talking about a slice of life episode and as soon as you start watching it, you will realize that there will be quite a few antics dropped throughout the entire episode. While it expands and normalizes the traditions and concepts after their reformation, the episode relies a lot on comedy.
Despite being set completely in the changeling hive (a mostly unfamiliar place for the viewer), it managed to convey that this is FiM episode as you know. Many people cherish Frenemies for featuring the villains only but To Change A Changeling... doesn´t feature any of the mane 6/CMC whatsoever. There is also the detail that the main 4 characters are all relatively new. We are talking about characters that have been defined and developed from season 6 onwards when it comes to the interactions shown here. Now, before anyone comes over here and replies to this post with this question: "Hey, what about Trixie and Dolores? You are omitting the fact that the debuted earlier in the show" You would be correct by stating the fact that these two appeared earlier.
HOWEVER, just because they appeared earlier, it doesn´t mean that said impact would affect to their development shown after their reintroduction in their concepts. Imagine that an outsider or any new fan came to binge watch the show, Trixie, despite her insane fame within the community, doesn´t show up beyond two episodes before the writers decided to hit the reset button with her role in the show with No Second Prances. As for the pink unicorn, she would only show up in the premiere and finale of season 5 (she has had more screen time than Trixie!) but her change of focus started to flesh out when she had the will to visit Sunburst in The Crystalling. Meanwhile, Thorax, as explained earlier, would make his debut in The Times Are A Changeling and from there, he would end up getting the leadership (with this flaw of not convincing Pharynx yet)
So, this previous paragraph clears up that this episode, doesn´t feature exactly the oldest characters or aspects that would remember at first from the show. Perhaps Trixie but even in that case, she wasn´t all that well defined either because... and here it´s the main moral of the episode:
