Jim,
I can understand the points you have made, so I will try to give you some answers,
No I havnt had any formal training in flood work, however over the last year I have had plenty of experience, the area I am in is still having restoration from last years floods, " I am right on the doorstep" I have never had a problem with any insurance companys over the past year, always paid out.
A complete list , showing comprehensive readings of moisture content in all types of different surfaces, dew points, relative humidity readings etc at different stages are available for any insurance queries if need be.
As for the tiles , lifting in the future and not been laid correctly . they are infact going to be replaced in the very near future, all part of an ongoing refurbishment ........, they wanted a temporary solution to sodden tiles, causing smells etc.
Moisture , has not got into the walls, already checked that with a low frequency electronic meter, not a b&q gadget. In a way I wish it had, I could have subbed the work out at a fee

Insurance company already informed , and told to get on with what needs doing , so hopefuly no problems.
geoff