Come on mate, surely you can see that it's a bad look when the leader of the government is applying for and getting a housing grant he doesn't actuality need while complaining about finances being tight and targeting people on the benefit who get a fraction of that.agreed. He is working under the same rules as every one else has for the last how ever long though. If people aren't happy with that then query the rules. It cant look like anything other than a personal attack otherwise.
I also agree that others shouldn't do it but he is the leader and should know how this looks. Key was smart enough to realize this, any leader from either party should be too.
Also, If they aren't using the house then sell it and buy the PM a flash apartment. Easier to secure. Cheaper upkeep.