Hell no!  Here's Martha's explanation and it's very informative.

https://houseofnasheats.com/german-pancakes/?utm_source=convertkit&utm_medium=email&utm_campaign=The+Breakfast+My+Family+Begs+For+-+3867642#wprm-recipe-container-18234

I LOVE sweet potatoes.  Yams don't look very appealing to me, but that might be just me I don't know!  

I don't like sweet potatoes mashed, however, I like them par-baked, cooled and then cut into halves and put side by side in a pan (depending on how many you are making will determine the size pan you use and how long to bake them).  Then I bake them just tad longer until they're good and soft. I love them slathered with butter, and a dash of salt and pepper and some cinnamon (even though they are sweet!).  It's a great contrasting taste!

When I make them I coat the outside with olive oil after washing them thoroughly, I poke holes in them with a fork or a sharp paring knife so they don't explode in the oven, and bake until a fork pierces the skin and the inside feels soft when the fork is used.  I sometimes wrap them in tin foil but I still wash and oil them but I wait to poke the holes until I get them wrapped in foil because the air has to be vented through the foil, too.