If you think like that than you should not consider Lightning Network Bitcoin as a real Bitcoin and any wallet that is using LN (custodial or not) should not be on WalletScrutiny website.
Bitcoin Blue wallet is not custodial, and you can create separate page for all Lightning Network wallets and other second layer solutions if you want.
LN Blue wallet wallet can be custodial and non-custodial and there are many shitcoins that can work with LN and not just Bitcoin.
Just my suggestion.
LN Blue wallet is by default custodial and does not warn the user.
I see your point for LN-only wallets like Phoenix but else, the protocol not being as good as Bitcoin in the presence of an actual non-custodial Bitcoin account doesn't make the wallet custodial. Maybe Phoenix is "not a BTC wallet" but certainly not custodial.