Hi Michael sean yeo. I undid your edit(s) because I believed they added unnecessary changes. Regarding the "Continuing from the previous episode" phrase, of late, we have been adding an entry to the Continuity section for episodes that continue directly after the preceding episode, seen here. I am not sure which was implemented first, though the Continuity entry is preferable to beginning the Plot of numerous episodes with the same phrase. Additionally, you added this phrase on a few episodes that began after a significant time lapse from the preceding one.
For the "To be continued" phrase, I am not strongly opposed to this, though the presence of an unresolved conflict makes it apparent that the story will be picked up in the subsequent episode, making it somewhat unneeded. Regarding the links to the prior and following episodes, the episode template states and links these. These are my reasons. I am not sure why the others undid your edits of this kind.