> i believe one partial cause of this is because there are higher expectations around the quality of goods and services applied for weddings.

Based on the comments ive heard from some people in the field (anecdote), this is a rationalization. If they discover that you lied about it not being for a wedding after it is done, paid for, and happy reviews garnered, they will be just as upset, but it us purely for the loss of income, not because of risk.