I cringed hardly when I first saw this, but now I think it might actually be a not bad idea. Just make sure to always use a tablecloth, NEVER eat on it, don’t use ink or anything that might spill, or place something heavy with sharp corners on it. But other than that, pianos are surprisingly strong, so using it as a writing desk or something similar isn’t the worst use for it.
Good luck,
Danesi