If someone tells you that the plant is totally easy to care for and does not need to be repotted for the next few years, it certainly does not mean that you should simply forget about it for the next 10 years... I have just rescued such a plant - SANSEVIERIA TRIFASCIATA MOONSHINE - and given the individual shoots a new independent life.
Despite the extremely high number of plants in the small pot; I could not even put a finger in between; the re-potting itself is not a big issue at all. Each plant needs to be carefully separated from the other one (a sharp knife is of big advantage), clean the roots, remove the dry leaves a carefully wash each of the new plants. After this, just leave the plants for couple of days at the dry place with room temperature. After approximately one week you may start potting the plants into the new (clay) pots with well drained soil.
Generally each new planted plant makes within 1 year 1-3 new side.plants, which can be again separated form the mother plant in the second year of growth.
To keep the bright white foliage colour (of SANSEVIERIA TRIFASCIATA MOONSHINE), the plants need sufficient light; please note that Sansevierias come from Africa, are succulents and pretty much enjoy sun.
What is your experience with Sansevierias? Do you already have them in your (Sansevieria)Collection?