That's fucking strange, since he says this on the STIL:
Martin Galway's own comments are denoted by (MG).
"I will never do rearrangements of those tunes on other instruments, the SID is what they're meant to be heard on. It would not be 'updating' them to put them onto a different instrument. If you ever hear music from me on today's instruments, the tunes will be all-new (and probably a lot better)." (MG)
Either he changed his mind, or he just wanted to make them feel nice :P