Just because some geek over at Ledger Nerd Central thought of and implemented it doesn't necessarily mean that it's practical. How many Ledger users actually use such an extraneous and "overkill" feature? Do you have stats on that and post it on here? Isn't it more practical, safer and sensible to just have two (or more) physically separate wallets thereby making them isolated, independent and physically separate from each other?
Heck, Ledger should fire that geek for implementing something that cuts into their profit margin since users buying two (or more) Ledger wallets instead of just one is obviously a better deal for them.