Yes less transfer time is certainly beneficial. But for the arrival in the 2050s we are actually limited by the seasons and the amount of light. Enceladus spring starts around that time, it won't change much in terms of surface temperature (~100K) but before this time its even darker at the south pole. Its already only 1% of sun light so landing in complete darkness is making it even more challenging regarding visual navigation and scientific exploration.

Adding the ESA link with the English text : Link