I personally think that feeding tubes are wonderful, for those who cannot take food or drink by mouth...I have worked with a few patients who had feeding tubes, and led very productive fullfilling lives...
But there are those, who consider a feeding tube not to be something they would want for themselves...
And that is their right. Hopefully, such wishes would be stated in written, witnessed form, not established via too-long delayed hearsay by a person unfit to be the guardian of a disabled person.