I think that it is OK. The work done now helps enlighten us a bit more on the history of these people and the type of research now includes DNA work as well as studying diseases of the period the particular body was preserved in.

Personally I find it fascinating but before I pop my clogs I think I will sign up an agent to look after me body for the future in the very unlikely event I get shown. Nice to be able to make a bit of dosh in the afterlife.