It's not an awful injury record. It's also not a great one. He's missed a substantial number of games in a lot of seasons. If you look at Terrier's injury history, that's more what I want to see.
We're probably disagreeing about the definition of 'stopgap' - what I'm seeing there is a player that's likely to contribute, but also to drop off before the end of a probable five-year contract. I don't think we get a sell-on or a second contract there, so the fee ends up being pure outlay. That said, the price is quite a bit cheaper than relegation, so there's that.