Could be good and bad. It does make it harder to win the highest offered prize (with only the 1-$25,000 slip) but at the same time it gave you a slightly better chance of winning at least as much as you could previously (since instead of 2-$10,000 you now have 1-$25,000 and 2-$10,000, for a total of 3 chances in 50 of getting $10,000+).
The boost in lower prizes was sorely needed, and it's nice for a contestant to be able to win "more", sure... but there's a difference between
a big prize, and winning
the big prize. It's easier to remember whether a certain game was "won" or "lost" than it is to remember what
was won. If you announce a big prize at the beginning of the game, you have to live up to that every so often.
Like how primetime Weakest Link "offered" more money, but it became transparently obvious after a few episodes that hardly anyone would ever complete a perfect chain and win $125,000 in a round. Whenever they pimped the top prize, you knew the contestants were chasing a white whale that would never be hit, and you adjusted your expectations accordingly.
Syndie Weakest Link was more exciting. It had a smaller budget, but there was a chance of a perfect chain actually happening, and the producers were able to set it up for a win every once in a while. Since you knew that the top dollar was attainable, it really felt like anything was possible.
I wouldn't mind seeing PaB played less in exchange for a second $25K slot, just so it could be "won" more frequently. That being said, no Punch-a-Bunch distribution has ever been perfect, and the current distribution is probably the best the game's ever had. Even when the top prize was $10K there was the problem of 40 boring prizes from $50-$500. The extra $1,000/$2,500/$5,000 slots make the game SO much better.