Yeah but in past years we sometimes had spring training GDTs, however modest. I imagine the combination of the Eagles' success and the awful ending to the Phillies' season has dampened enthusiasm, and not just here. Home opener is not yet sold out (it's only available in a package but that didn't stop it in advance last year).
The roster is also factor, I reckon. Harder to get excited when there are only medium-sized upside play additions, no position battles except for the fringiest spots, and no prospects trying to make the team (even the one who will isn't going to do it entirely on merit.
Of course we're also Philadelphia sports fans and the Sixers trainwreck and Flyers rebuild is more interesting than Taijuan Walker (which really is the thing we've discussed the most probably).