I suppose that in some places it might not have been possible to preach for any length because of the extent of the rites. However, I also suppose that in some places Father (or His Excellency, His Grace, His Lordship, His Eminence) did, in fact, discourse.
Was there a good point made in the sermon you heard at your Mass of Sunday obligation? Let us know. [GOOD! This isn’t open for griping.]
For my part, I reminded people that we are our rites. Participating in these sacred mysteries makes them present to us, us to them. We must also remember that, while Holy Week has elements which surely make us sad, because they remind us that our sins crucified Our Lord, any every moment of agony was a victory. Every blow received, every thorn, harsh word or nail was and, liturgically, is a triumph.
Here are a few shots from our Palm Sunday: