They are toting coming upto more nodes available then bitcoin core.
So what does it offer to the network in terms of benefits?
This is all that the one's sending and receiving bitcoins really care about after all.
That is their bottom line.
diversity
their needs to be atleast a dozen different "teams" of devs.
where some nodes are wrote in different codes like go, bitcoinj, etc
that way if for instance there was a bug in core. the network survives.
if only core was running the network if core has a bug all nodes have a bug.
diversity to mitigate bug risks is a security bonus.
anyone screaming that core needs to be the bitcoin king, is not thinking about bitcoin security, but about corporate centralism and security weakness