I’m sure they have in the last decade. Some of the seasons pre 2017 were fairly mundane, but we’ve been in an active cycle overall since about 1995. The tear we’ve had 2017 on is legit exceptional.
There are reasons to believe this season is at or above average aside from SSTs. I lean the other way but I don’t think their forecast is a hedge. They’ve probably been under forecast the last few years but again an historic run.
Also, we’re ahead in NS and ACE so far, but will probably fall behind in ACE unless the central Atlantic produces.