Should the Sheridans have called off the garden party, as Laura suggested?

This becomes one of the fundamental issues in Mansfield's
short story.  On one hand, Jose's words are haunting to this point: 
"She [Jose] takes a dim view of Laura's wish to cancel
the garden party when she tells Laura that she 'won't bring a drunken workman back to
life by being sentimental." The mother is much the same, in that she allows
her daughters to plan the garden party, but does everything in her power to ensure its
facilitation.  In the end, the cancellation of the party would have done little.
However, I think that Mansfield is bringing out the emergence of different narratives in
contrasting the garden party and the lives of the Sheridans with the reality that
surrounds them.  The presence of working class people, those who lack the resouces that
the Sheridans possess, as well as the idea that what was once told to be right might not
actually be entirely accurate are all a part of the journey that Laura commences.  To a
great extent, the reader in unclear as to where Laura stands on this issue, yet there is
an  understanding that Laura has experienced something that might prompt future change
as her perception of the world has been expanded.  If one believes in the ability to
listen and to heed the cries of others' suffering, then one should advocate calling off
the garden party, if nothing else to show solidarity with another group enduring pain. 
Whether or not Laura fully understands this is one issue.  Yet, Mansfield presents this
situation to the reader so that they might be able to more clearly articulate a position
upon which both the Sheridans and Laura possess obscurity.