I would say that this is (unfortunately) normal. Marriott works with a much worse exchange rate than market value, so don't expect to receive points equivalent to the USD value on your credit card.
Case in point: I paid 59.50 GBP for a hotel recently. This is roughly 94 dollars but I got 806 base points, not the 940 you'd expect if you convert dollars yourself or look at your CC statement. Not quite as bad as the example you posted... but then again, your CC charge might include a 3% foreign currency charge.