i guess we will see the results and know soon enough. but as @Kakmakr said above, this social media drama is just going to breed more drama whether their project fails or succeeds.

this statement is for when a different kind of fork happens. like for example when an orphan block happens, there are two chains for a little while: one chain which will grow longer as others build on it and that is the Bitcoin chain, and one chain that people abandon so it would be shorter and contains that orphaned block(s).
otherwise when you fork to create another coin intentionally (like BCH) your chain can be longer but that doesn't make it bitcoin. in fact BCH chain is already longer. there are other forked coins that are much longer too, for example you can fork and decrease the time between blocks (eg. 1 block per minute) so you will have a longer chain in a short time.
edit: this part was wrong (thanks to @jbreher) but the main point stands. the "longest chain" aka the chain with the most "poof of work" is talking about another kind of fork. reading the bitcoin paper the "longest chain" is always used in that context not this new form of forking bitcoin. the forks like BCH that create an altcoin can technically end up having a longer chain (with the most proof of work) and still not be bitcoin.