Without support this is not too bad, 5 Madmen mean you get to 26 cards, discard $11, draw 13, discard $11, draw 13, discard $25. $47 is 6 provinces, but you are buy limited so you almost certainly will want to get two additional Srooms so you can hit $45 and 6 buys. 5 Provinces + duchy is still not an assured win, and if you do this clean you will not be hitting even $5 for the rest of the game.
The troubles this has over Market Square Hermit are:
1. You lack golds after you go off. 36 VP is not enough to assure a victory. At best you can snag two estates per turn unless you have some silver or other efficient money. You can easily lose to a slightly more powerful megaturn (very common for Madmen games) there are 39 VP left in the game without Alt-VP so in a lot of cases you will absolutely need a 6th Hermit.
2. You have a much lower gain potential during your final turn, you need a Madman for each terminal play so getting to 8 gains means you need 7 Madman. This is much harder to manage if you are contested.
3. Srooms, without villages, are slower at letting you get your Madman up. They take up real space in your deck so you will burn a turn, maybe two getting Hermits out of your deck.
On your board, Knights is a pretty decent call and that was about the worst set of knights you could hit (e.g. Vander is the absolute worse without the other guy going knights, Martin is pretty close behind as well), getting Anna, Natalie, or Michael as the second knight would have been much stronger. Killing Hermits & Storerooms is pretty solid if they cannot easily be replaced, so contesting the Hermits -> using Madmen turns to gain knights would likely have been more successful.
What I see, though, is a very strong Fvillage/Sroom/Wt/Hermit setup. You can gain all your components for cheap off Hermits (and of course trash estates) and you can churn a huge amount cards repeatedly. Something live Fv -> Sroom -> Fv -> Wt can easily go look through 8 cards and draw up to 6 to set up another run of search & draw. You can explode your engine pretty quick there. Adding in a knight or two also becomes pretty viable once you have your engine going.