You really should get your facts before making posts like that,
On the Safety side
1. Don't forget how fast a 737 is, by the time the guys had the checks done and talked to atc they would have most of the distance to GRO covered rather than sitting in a hold over BZR.
2. The rwy in GRO is a good 1000ft longer than in BZR, a very important factor on one engine.
3. Most Ryr pilots will know GRO airport being one of the bigger bases, meaning less workload on the pilots.
4. Being a base the emergency services in GRO will be more familiar with Ryr aircraft.
On a commercial side
1.There will be engineering cover in GRO
2.At this time of year they will prob have a spare aircraft/crew.
3.The ground staff will be better able to manage the situation.
Contrary to popular belief there are reasons the pilots fly the plane and not the cabin crew