When using heal (t 0/1/2), Dynamo doesn't slide when crouching on ramps/stairs. Seems like this should be possible, since you can now jump/slide during heal.
You could argue it's a channel and therefore it shouldn't, however Haze has an ultimate that allows for sliding. Same with mo and krill. However, haze's ability should be strong, and the burrow is just a nice touch. A quick moving heal, is drastic creep of power, and it feels natural for him to be a bit slow when healing. At least for me.
Weirdly enough, pocket with 1, sliding causes it to stop the ability. Would be interesting where the intended interaction is to literally preserve the horizontal momentum as well. Would it also be a stretch to say that cancelling the 1 should be the norm, and let jump be possible for a wall jump during barrage? As in, you don't increase or decrease verticality, but just horizontal speed? Is that quality of life or a bug? Again, can be argued as a bug because of the aspect of being able to preserve momentum.
However, in regards to Dynamo, it should made be clear if it is and isn't a bug. Whether fixed, or stated explicitly. If Dynamo's slide heal should be possible, then shouldn't throwing rem's pillow, and Venator's traps during slide be possible too? Why or why not? Simply out of feel? Or out of power?
I think it is likely a bug, when you consider about feeling fair and consistent (without absolute frustration), as Kelvin is about to use slide freely during his beam. If that is allowed (and doesn't seem unnatural), why shouldn't the healing of Dynamo be as well?
