Apologies, vilas for my incorrect assumption.
However, All thrust levers have some friction, (otherwise they wouldn't stay where you put them!), and walking the thrust levers is a very useful technique for small adjustments - especially on Airbus FBW, where as has been noted, the lever travel and the levers are relatively short.
Like Vessbot, I use this technique to adjust taxi thrust and flying thrust if I want to make small changes, (and have done so on turbo-props and the BAe146 for example as well as Airbus). To adjust thrust from, say, 53% to 55% N1, I can easily over shoot if I do it 'freehand' , but if I walk the levers up I can get my target thrust very precisely.
Note: when I say walk, I am taking steps of a few millimetres at a time, no more.