Eve, I'm sorry I haven't seen this question before now.
Anyway, the other posters have spelled it all out. Because property is bought on a "buyer beware" basis in law, purchasing solicitors tend to get a tad hysterical. You could easily stand your ground and insist they just get on with it. On the other hand, a simple indemnity insurance would probably work out cheaper than more" lawyer time".
As our resident physician would say ............... "no big deal".
Good luck.