DBCC CHECKDB needs to check the checksums on In-Memory OLTP (Hekaton) tables
Today (SQL 2014 & 2016), CHECKDB skips in-memory OLTP tables. It needs to check the checksums on those tables so that we can find corruption before we find it the hard way.
Scenario: weekly full backups on Saturday, and log backups every X minutes. Corruption strikes on Monday, and we find out when we have an accidental reboot on Friday. The database is now completely down, and we have to wait until we restore the database from full + all transaction logs since.