If your teaching is at least modestly informed by the scholarship of teaching and learning (and, I dare suggest, it should be), then you are probably aware that frequent assessments are a good thing. Students learn better when they have more opportunities to find out if they’re learning what is being taught.
But — as Meg Duffy pointed out last week — some teaching practices are effective but may not be sustainable because they might just require so much work from professors. This resonated with a lot of people. A lot of us apparently feel a genuine tradeoff between our capacity to teach effectively and the amount of time that we are expected to invest into teaching each of our courses.