I think Mr Collins is experienced enough to fully understand that although he is a supremely talented musician and songwriter, his public profile leads a lot to be desired.
Part of the machinery of cranking his career back into life after a long layoff is to tour, and that requires the pre-tour press jamboree.
Like all musicians of his stature, Mr Collins can avoid all the day-to-day interviews, and simply do the top-end chat shows and Sundays, but even that means tedious questions about little other than his private life and his fame, and money.
So he does them, maybe with a little less grace that professionalism demands, but he is doing them, and then he can get on with being a musician again, which is really what it's all about, and only what it's all about as far as he is concerned.