Yes, it was a tragic event. But, there would have been other families, who also suffered terrible tragedies in the last few days, who might well be wondering, why all the fuss for a famous footballer, not our loved one(s)?
And re the journey, yes, he'd been advised not to fly back for pre-season training, due to a recent operation, so they were driving to Santander (possibly Bilbao) so he could get a ferry back to the UK.
But, though they likely never considered it, they could have just driven to perhaps Salamanca, then got one of Spain's fast trains to the port, though the ferry takes quite a while to Plymouth or Portsmouth anyway.
I expect their family will long wonder about their choices, and how Fate or the Good Lord rolls their particular dice?