Yeah, I meant Hartnell - sorry, spell error.
That said, I concur about the missing episodes being an issue. Not claiming to be a Who-vian expert, but the show always seemed to have rather tight continuity, plus to watch a few parts of a serial and then to listen to the rest can be rather distracting.
That said, I have hopes that they will eventually animate most if not all missing episodes. Several episodes from those seasons are now out or upcoming, so there's still hope.
PS: And IMO, the B&W is the least of the detractors, IMO. At the very least, it lends a different feel to it, and IMO adds to its uniqueness.