The advantage is obvious. You have all your BTC in one address meaning you would be actually able to memorize the private key and have the encrypted metal stamped version of it in some safe in case you die and want to leave to someone else.
But is there a threat posed by this Bitcoin collider that someone stumbles by chances exactly into your address?
This kind of situation happen that chances so less. Means mostly it will never happen but then also if you want security, you can transfer your BTC in another address after some months of period means after every 6 months of period you transfer your BTC in another address.