Mail against Monarch (maybe)

In The Mail of October 24th, the editorial is on the dangers to the monarchy of its own financial independence from the government. Under a new deal, the monarch will receive a guaranteed income stream henceforth, without having to request it from the government via the Civil List, as previously. The Mail proposes that this may result in a future monarch feeling free to meddle in politics without any consequences from the government, and ends with a warning that this would turn the most loyal monarchists into the most likely enemies of monarchy - presumably including the Mail itself?

Is this all based on a Prince Charles idea or is it a generic thesis from the paper? The latter, it would seem, as it also carries a longer opinion piece elsewhere, entitled, "The Chancellor may bitterly regret handing Charles a licence to meddle"