Summoning hijinks

[Therem Harth]

I'm testing Strawberry 0.04 in debug mode at the moment. I'm on level 127 (after slaying Morgoth) and just encountered a Greater Balrog. The Balrog decided to summon high demons.

The summons filled the hallway, and included nine or ten Pit Fiends, plus a dozen Hezrou and Gothmog. That's rather a lot, even for level 127, I think.

On the other end of the scale... When I was fighting Morgoth, he at one point summoned monsters. The monsters included some kind of tick, a ranger, and a giant pink frog. All of them were squashed by debris the next turn.

Is stuff like this intended behavior?

(The modifications in Strawberry, FWIW, don't include anything that should affect summoning.)