Surface fibres protruding through the surface can be significantly reduced by the use of a dry-shake topping.
Surface fibres can be cut flush with the surface. Any significant resultant blemishes can be treated with a suitable resin-based material. Macro synthetic fibres tend to be spun by the power finishing process. leaving fan-shaped imprints and unravelled fibres.
The acceptability of fibres at a surface is subjective and depends on the use of the floor.