Since I occasionally drink, let me give you my 2 cents on Pallavi ka stance here.
So this has been the norm in my family and my extended family that the ladies of the house don't let them men have more cash in hand because they'll splurge on liquor. So I didn't find the underhanded ways deployed by Pallavi as something far fetched. Ofcourse it all came from a place of concern and something they've been witnessing since the past few days (since Mandar track). One thing I didn't like though was that R didn't have money to pay for the food and must have been an embarassing situation for him to have only 501 bucks in his wallet.
Actually, my beef with Pallavi is that she should address why R is turning towards alcohol and not sharing his sorrows and worries with her. I believe R should drink alcohol only occassionally and not because he wants to drown his sorrows in the liquid.
Also, trust me, Pallavi isn't rationing his alcohol. One peg a day is more than enough for a young man. Usse zyada if he drinks he'll be called an alcoholic. So while I don't agree with the means, I do agree with the end.
Again, they are doing an either or situation depending on his bill of health but why can't they look at a mid ground, 1 peg a day with his sari ka dukan?