You refer to "a tiny market share". You'll also know that the UKCC has defined the relevant market, not as "all routes from the UK", but as "routes between Britain and Ireland". Section 4.47 of the
UKCC final report says that in 2012 Ryanair had 49.9% of that market and Aer Lingus 31.7%. Tiny? Really?
Terms of reference drawn up to make sure the final decision could be justified, hell thats not a hard thing to do.
Decide the verdict and make sure background stacks up to it.........not really a hard job to do.