I can't tell this better than Spyro. Playing blue coin feels absolutely horrible. It is actually like giving CA to opponents since you have to commit +1 powerful card if you don't want to lose on even or want round control. Different factions (ab)use Red Coins differently, and the only way to have a say on how the game goes is by committing your powerful cards. Red coin players can also keep playing strong cards to get CA (winning on even), making it even worse for blue coins. On any day, I would prefer playing only red coin.
Playing Blue Coin should get some more handicap, because it is a handicap playing blue coin. I want all the stratagems to be buffed; instead of providing 5 points (TA and Magic Lamp), it should give 6 points. Strategems which give 3 point boost/damage with some additional advantage (NR, NG, the Purify Strategems, The damage and enemy by 3 strategems) all should do 4 points. Yes, it makes those strategems powerful, but it is still fine as Blue Coins needs the edge. The Strategem which allows looking at top 3 cards, should also boost the unit by 1 which we draw. MO Strategem should trigger the DW and also boost the unit by 1. SK strategem; I don't know how to buff it. May be discard and draw a card and boost the card drawn by 1? ST strategem should spawn two Dead-Eyes.
On top of that Blue Coin should get 4 mulligans instead of 3 (or red coin should get only 1 mulligan, which is horrible). Then, only then, I consider blue coin fair. Otherwise, getting blue coin already puts your game in 'HowTF am I going to get out of this R1 without losing on even and can I control the game length?'. So, what if your opinion about playing Blue Coin and how strategems are placed in the current meta?