I like to interpret this choice of derivation path as “Bitcoin is Bitcoin Cash”.
If you are not sure what this is talking about, the derivation path basically lets you use one seed to create multiple wallets. The reason it is important to know is that even if you have the correct seed, you still need the correct derivation path to access your coins. It’s kind of a messy system. There is some discussion of the issues surrounding it here if you are interested.