Nah, jog on. This was fair January last year, but this year definitely not.
Diego Costa, Mario Mandzukic, Alvaro Morata, Adrian Ramos, Ciro Immobile, Jackson Martinez, Karim Benzama, Gonzalo Higuian, Cerci, Destro, etc.
Obviously it's highly debatable how many of them were 'available' but most of those did move this window and we could've at least enquired. Then when you go to post Giroud injury the likes of Remy definitely should've been in mind.
And as GIMH said, Arsenal are meant to have world class scouts and people to find these guys. I don't really know about people not playing in England, Spain or Germany.