Final answer:
A modulating steam supply allows for better control and adjustment of the steam flow according to the needs of the system.
Step-by-step explanation:
The concern about a modulating steam supply is not related to the maximum condensing rate or the maximum steam supply pressure. A modulating steam supply allows for better control and adjustment of the steam flow according to the needs of the system. This is important because different processes may require different steam flow rates or pressure levels, and a modulating steam supply allows for flexibility and efficiency in operation.