Sorry, I meant bun fight in the "straight forward" application concept... not in them giving you a visa. Should have made that more clear. My fear was you sitting down across from an IO, them grilling you on the public funds, making some uninformed comments and then refusing to issue you the visa that day, take your £200 and send you packing to go worry at home, even though you had done your homework.
Now as John L has pointed out before, there is some Paragraph 6a and 6b stuff that you could be entitled to without running afoul of the law. While I understand and respect your point about him getting no more or no less, the social benefits are there to ensure that he is looked after, and if the government is willing to help you to help him, then that is perfect. It is something that as a UK tax payer I am proud that we take care of people who honestly need the assistance. You, as a family unit, should get every penny that is within the rule of the law. That of course is up for you and your family to decide.