Except for a few screwups the airline/airport established MCTs are well thought out. The consequence of you missing a connection is potentially very expensive for them, so they have no interest is selling connections that are not possible.

Of course the shorter the connection the more likely you are to miss it because of a late flight. You need to weigh the attractiveness of the ticket with the short connection with your need to be at your destination at a certain time.

if you misconnect there are likely other options besides waiting 24 hours for the next LH flight. If you buy this ticket I would research the options so you can suggest them when being rebooked.