What you're not quite getting is that it doesn't matter what the in-universe reason is. The fact is that the first season of DSC showed bald, highly alien-like Klingons in clothing they've never been seen in before, flying around in ships whose designs look nothing like what we've seen before, and the producers of the show gave zero reason to the viewing audience as to why everything looks so different, other than the 'visual reboot' nonsense. But now they're saying, "oh, yeah, they just looked like that 'cause they shaved their heads for some reason we're pulling out of our ass, and now you'll all see hairy Klingons and K'T'Ingas and Bat'leth's and everything else just like normal! And, oh yeah, uh, we planned it all this way from the beginning! Yeah, we know what we're doing! Trust us!"
Yeah...no.