The Pennsylvania Bulletin weekly update occurs at 9 am this morning, which may have details about the new Pick-2 game. Hoping it's like OLG's.
As for MMC, PA and other states had no practical choice to abandon the game after Texas left, which put the game into a death spiral. Lack of player understanding was an issue, but not the only one. Even many savvy players, who understood MMC, played it cautiously, if at all. The odds were terrible, and felt like a rip-off.
Many have mentioned that players routinely play instant tickets at such price-points with little issue. However, the odds of winning anything is generally better than 1 in 4.4 for PA $5 instant tickets while MMC was over twice as difficult at 1 in ~10. Players noticed the difference quickly, and felt cheated; lack of thrill for the cost.
Players can tell a good game from a bad one. PA Treasure Hunt, despite its relatively low jackpot prizes compared to other games, has a very loyal following, because it's a good value (payback may be over 50%) and many players win. PA Pick-2, if it's anything like OLGs, while being a niche game, will generate a loyal player base. With all that said, ditto on your sentiments regarding Daily Number and Big-4 with their very low cost of entry for a nice size payout.