I took the condom incident to be about protecting GA against gossip (so yes rumours reaching tabloids) but also think the female cop would have known that the guy was married and therefore discretion was even more important.
Some of the other issues didnt annoy me as much; the burnt out car he'll blame on the local paramilitaries who threatened him; the big house would not be too unusual - some parts of the city still relatively cheap due to hangover of the troubles (reputational reasons I guess) - I know people with fabulous houses (some owned others rented) in not so fab locations on similar salaries; Paul's 'at home attitude' I took as being part of the problem, married but dont really share anything, no communication, dont know each other at all; the pathologist's friend knowing a guy from her past with similar tendencies...maybe not so unusual, it really is a small city .
I think that some things will happen in series 2 to plug the gaps, the Monroe/drug/escort story has to continue, Olivia's nightmares will come to the fore, the babysitter and the lock of hair from his supposed dead mother will come out, the DNA sample will arise again...I just think/hope it may be cleverer than we suspect.
What really got me was why the police would choose to highlight that particular moment of the dead girl's day, her brief walk through Botanic gardens to meet her sister. What about her journey home, any shops she visited, her job...was there no other trace of her before she was killed? Massively unlikely, surely, that her last cctv moment in the middle of a bustling city would also include evidence of her murderer..?