fiance and spouse visa's will always be very hard for them to place restrictions on and placing a limitation on the amount to be issued would become a Human Rights nightmare. They may just want more proof that it's not a forced marriage or a sham, but thats about the limit of things.
Plenty of other areas in immigration that are a much bigger problem. But then if the Lib Dems had their way, we'd be Schengan country by now with almost no borders!
