Final answer:
Without context from the specific story or material the question refers to, it's not possible to accurately answer why the hockey players insisted on having Henrietta on the bench.
Step-by-step explanation:
The question does not provide enough context to determine an accurate answer without additional information, such as the specific story or circumstances in which Henrietta is involved. Typically, in literature or storytelling, a character like Henrietta might be considered a good luck charm if the players believe her presence positively impacts their performance, even if her impact is not based on quantifiable contributions like coaching skills or inside knowledge. In more humorous or light-hearted stories, the idea that she brought snacks to every game could be a whimsical reason to keep a beloved character around. It's essential to know the plot and characters to provide an accurate answer.