The idea that the format needs to better support Blue vs. Blue gameplay is not something I can get behind. It kind of offends me (but to clarify, I'm not mad at any forum poster).
There is a lot that is fun about Vintage, but at the same time Vintage is where you go to see many of the hideous mistakes made by game designers. Broken cards will, of course, happen and require restricting (or answer cards). But the game's designers have effectively broken an entire color. When you feel the need to restrict Ponder, that tells you something about how one color has the vast majority of meaningful card selection and card advantage. Dig, Cruise, Delver and both good Jaces particularly disappoint me. They gave Blue a 3/2 flyer for one mana. According to that reasoning Red should get a 3/3 first strike haste for one mana (Swiftspear is close), and green should get a 3/4 hexproof for one mana (Tarmogoyf is really a blue creature).
I'm not saying blue has the only imbalance in Vintage. When we talk about creatures, White and Colorless (Artifact/Eldrazi) have gotten boosts, too, above and beyond Green, Red and Black..
And I know that little effort is spent at WOTC on Eternal Formats. But it would be very easy to print cards in Black, Green, or Red that impacted the Legacy and Vintage meta without being easily slotted into a random blue deck.
Apparently I wasn't finished my rant. Apologies.