I'm a frequent traveler. I hold a very different perspective when it comes to these packages.
You're basically saying that you're okay paying ₹10k extra to include two meals, than paying for it separately. It's more of a psychological thing, and it's always this case because Taj hotels are priced higher than Marriott hotels of equivalent category. I used Taj vouchers earlier this year in Chandigarh, and I also stayed at JW in the same city because I only had vouchers to cover two nights at Taj. JW was like 25% cheaper than Taj and better at the same time.
But coming to half board and full board packages, I avoid these like a plague. This is because these packages always come with limitations, even at places like Maldives and Mauritius. I have visited both (Sheraton Maldives, Le Méridien Mauritus, JW Mauritius which is now being converted to St. Regis) and I've always opted for à la carte. You do get an option to buy these packages even when you book the room using points, it's very similar to the price increment we just saw at Taj Jim Corbett. Buying packages is never a good idea, especially at 5-star resorts. This is because these resorts have multiple restaurants, and every time you choose to visit an upscale restaurant within the hotel, you have to pay extra on top of what you already paid. Plus, drinks packages are always sold separately. Calculate all these expenses and you'll always end up paying more than what you would have paid for for standalone meals. But like I said, it's more of a psychological thing.
When we talk about Jim Corbett, both Taj and Marriott have 3 restaurants and a bar, and the rate you mentioned above will limit you to a single restaurant, after paying ₹10k more in room rate. Breakfast, I can understand, but dinner? Why would anyone want that?
And by the way, I wouldn't call Taj booking process easy. If anything, it's the opposite of easy. Taj doesn't let you book without credit card authorization; Marriott, Hilton, Accor, Hyatt let's you book without credit card authorization. When you want to make an award booking with Taj, that is use Amex vouchers, you have to specifically call or email them and ask them to attach your vouchers to your booking, which can only be redeemed against regular rate and not member rate. No other brand has such complicated procedure or conditions. I book Marriott hotels 11 months out with an expired credit card number on file.