If it’s like all the last versions, that is normal. It comes with simple client by default, but the NTP package is a file package (separate) of it’s own. That’s how it’s been for a long time.
In version 6 IGMP proxy with quick Leave enabled does not work at all. With quick Leave off working bad as Matvej said. After mikrotik boots it takes couple minutes that IGMP proxy start to work. Once that IGMP start to work it’s still working bad, after I switch on STB from channel to channel it takes 10-20 seconds to get the picture. It’s usually lasted up to 1 second.