The article talks at great length about wanting to properly pay women for surrogacy.
But the truth of the changes required by commissioning parents is in this paragraph:
UK law currently makes surrogacy an informal enterprise with a legal process that takes place entirely after the event. What we need is regulation at the start, through written agreements, counselling, screening and preparation, and independent legal advice for all sides. This will guard against exploitation far more successfully than law which gives no structure until the baby has been born and then ineffectively seeks to restrict payments which have already been made.
The real difference between surrogacy in the UK and the US is the contract. At the moment, women can change their mind after birth, in the US they are locked into a contract at conception.
This is not about protecting children and vulnerable women, it's about protecting commissioning parents.