And yet the ombudsman disagreed that they were aware.
But the public ombudsman has no legal powers to compel the government to comply with its recommendations. The government has the right to choose to ignore the ombudsman's ruling as it has in this case, not least because it needs to consider the wider public interest in spending up to £10billion of public money on compensation. The government has decided not to do this, and good on them.
If the WASPI campaigners don't like it that the government has chosen not to comply with a non-legally binding ruling by the ombudsman then they can look to get a legally binding ruling in the courts. Oh, I forgot they have already challenged this in the courts (well I didn't forget, but did note that you failed to mentioned this) ... and they lost. The court ruled that there was no case for compensation and I believe also ruled that the DWP did not have an obligation to write to all potentially impacted people individually.
Oh and something else you have forgotten NS - which is to answer my question - Do you think the WASPI women should be compensated for their failure to pay attention to pension changes that had been announced 15-20 years before they came into effect?