I'm not surprised the IFPA has started doing this. I think it is more motivated by their attempt to stay relevant in the competitive community and compete with the PAPA big-money tournaments than it is to encourage and nurture competitive pinball in general.
IMO, the IFPA is in a kind of "competitive purgatory." Their circuit doesn't have the respect and prestige of PAPA due to the WPPR system which most people don't really understand how it works, and their regular re-balancing and arbitrary re-assignment of points for special promotions. There's not much consistency to it. It favors smaller numbers of obsessive competitors who rank among the top, over more consistently-performing players. Their system also allows people to easily cross borders and compete in less competitive markets in order to bypass their peers and jump into the nationals. The whole competitive scene under that umbrella is a mess.
So now adding more money to the mix, just amplifies the existing issues IMO. Some will like it. Others won't. I see both sides.
Me personally, as someone who ran multiple SCS events and then walked away, I am glad I am not participating in this much any more. The sanctioned events didn't do anything positive for our scene. Adding more money just means more of the same hyper-competitive people that discouraged casual players will show up. If you have a very competitive state, the changes will be more welcome. If you have a more casual scene, the changes mean that your casual leagues will be targeted by, and/or feed more competitive players, many of whom have a tendency of discouraging casual players.
In a general sense, IMO, modern pinball competition is about information/game access more than it is raw skills. As such, in order to be competitive in the high end, you have to know something other players don't, which means a lack of cooperation or secrecy is part of the formula for success, which is antithetical to the conventional idea of competitive pinball as a fun, social sport. So I just don't enjoy the higher-end competition, and especially if the money becomes significant, we'll see more of that unseemly approach towards the sport. I don't think pinball is big or popular enough to withstand a lot of that. No doubt, these changes will energize the competitive markets, but I fear they will do so at the expense of the more casual markets, and end up polarizing the competitive/casual scene even more.