Drinks at finish - ..... If the finish is a long way from the assembly then risk mitigation would suggest that drinks need to be available near the finish.
Risk assessment may also require that if the Start is a long way from assembly then drinks should be available at - or on the way to - the Start. Particularly in summer. Drinking prior to the race is more important in avoiding dehydration.
This is an area where the UK seems to be out of line with other countries, who in many cases seem to place far more importance on drinks at the start than the finish.