Do you mean there are only 395 users with 1000+ merits? I don't understand what you mean 395 have earned enough merits to become legendary. According to BPIP, as you also mentioned, there are much more legendary members with 1000+ merits.
He’s talking about user’s with 1000+
earned merit, i.e. merit that was acquired after the initial airdrop, when the system was introduced. BPIP’s information says there are 396 such users currently.
https://bpip.org/Report?r=earnedmerit