Yes. I recommend always having multiple copies of your list.
The minimum you can do right now is to download the exports to your local machine.
As long as you have these files, there is always the possibility to move to a different anime list provider.
Note that the JSON export will not help you if notify.moe servers goes down. Unless Akyoto releases the internal anime DB. As all entry have notify.moe IDs instead of names. But they do include mapping ids for external platforms like anilist so you could recover most of them, provided they still exist on anilist or MAL.
I was just wondering about the optmizations you made lol. Sites resource efficient and loads so fast. I remember you had a GitHub then a self-hosted Git. Just wanted to take a look at the source code lol
