Was this exploitative?

I feel slightly uneasy about this film, despite much that is good about it. I don't think it is exploitative in terms of people making money out of it (I think any profits went to Mencap, a mental health charity in the UK) nor do I think that Tom's role in the centre of this is in anyway negative for him - he seems to have got a huge amount out of the trip.

Where I think there is an element of exploitation is that his brother and sister may have got more out of it than Tom. I could be wrong about their motives - in fact I'm sure their motives are more complex than comes over in the film, and I don't doubt their love for their brother, and desire to do something good for him. But right at the start of the film, in setting the scene for us, his sister tells us that she and her other brother Will, had moved away and not see so much of Tom now - there was a lot of regret in that, but I think also a large slice of guilt too. That sense of guilt then affected the way I felt about the rest of the film, and it felt as much about Kate and Will dealing with their own feelings as it was about doing something positive for Tom.

I'm not wanting to be critical of them for this if it is the case - I genuinely don't understand what it is like living in a family like that, and am in no position to make any judgement about the way people deal with their own unique circumstances. But purely from the point of the film, I couldn't get that idea out my head, and wish that - without deflecting the focus of the film from Tom - I wish that we could have dealt with that issue more, just to put it in its place, and not let it hang around, putting a filter on the other things that we should have been thinking about.