If the driving reason was due to lack of sales, then just leave the reason at that - what they've done is to give mealy-mouthed virtue signalling excuses to further justify their position, and that is pathetic.
I've never been a big newspaper buyer, but I do know the Daily Mail can be a little pernicious, but so what? If its readers don't mind, what the hell has it got to do with anybody else, particularly those who take a superior looking down the nose stance at the paper and its readers.
And for people that are 'offended' by the Daily Mail, well that is bedwettingly pathetic. I know its a cliche (but cliches are cliches for a reason) nobody has a right not be offended and offense is only ever taken not given.