Have to agree with publicunofficial here. The Governor is not a king and there is no reason why 188 elected lawmakers, elected to write laws of the likes which Hogan proposed, should have to capitulate to one man elected by a very modest margin during an low-turnout election where only 44% of registered voters actually voted.
While I agree with you in principle, a gerrymandered legislature is the only reason it's so Democratic.
Depends what you mean. Maryland's population is just shy of half non-white, with a third being African American. On top of that, the white vote in Maryland is several points more Democratic than the national average. There is gerrymandering, sure, but gerrymandering will not consistently give Democrats 60+ seat advantages in the state House and more than double the seats of Republicans in the state Senate. Even in a great year for the GOP, the legislature would almost surely remain Democratic. Veto-proof majorities would probably be a lot rarer, though.