Confessions of a Newbie Rider

[Grahamm]

I think the issue stems from if the gears do not mesh correctly - in this instance you find yourself without power / drive when you potentially need it

Yes, but if you're heading into a situation like that, you wouldn't (or shouldn't) block change.

That's what observation and riding plans are for, ie you look at the conditions ahead and consider whether you can simply slow on the brakes then drop right down the gears or, alternatively (in a situation where you may need drive immediately), step down the gears individually, engaging the clutch after each one.