Makes sense to me. A friend of mine is a sexton for many of the local cemetaries and he swears there are predicable tides in the earth. He says the best time to backfill a grave is at “low tide” because he can get more earth back into the hole.
Earth tides are very, very small. Sounds more like confirmation bias to me.
Precise orbit predictions (among other things) take account of solid tides, which are a slight bulge of the Earth in response to lunar and solar gravity. It's not a huge effect, but it matters.
I could see your friend's story being right; and this article makes sense in that context.