http://www.michael-gerard.co.uk/blog/briefings/retention_of_title/
Did you actually read that link before you posted?
Quote from the link
"The Romalpa clause will only bite providing it is written into the contract. A seller cannot reclaim its goods simply because it has not received payment, even if the goods have not been sold-on or used. Standard terms of sale are therefore critical."
So, acknowledging that terms and conditions can make ROT work.
http://www.ukbusinessforums.co.uk/threads/removal-of-unpaid-for-goods.174336/[/QUOTE]
The link is about the supply of a structural component supplied and built into a building and therefore impossible to remove under ROT because the building would be destroyed - a point acknowledged by the OP in the thread you have linked too.
Both links seem to demonstrate the point I have tried to make repeatedly
Well written contracts can give you effective ROT and enable goods to be reclaimed.