A majority within the coalition does not translate to a majority in the Bundestag, which is what's needed to put any of these many promises and plans into actual action.
Well, obviously. However, they can push for it within the coalition, which in total does have the majority. Obviously. My point is, both parties have a better track record for putting weight behind their "promises" than the SPD, which is a spineless vessel for anyone taking the leash.
A majority within the coalition does not translate to a majority in the Bundestag, which is what's needed to put any of these many promises and plans into actual action.