Hold and Mass Hold

[Yaldabaoth]

Is there something I am missing here?  Why did the Hold series of spells get a duration nerf?  I can't help but feel that these spells weren't really suffering from balance issues, especially considering the fact that most spawns on this server are outright immune to them.

[Vincent07]

All forms of paralysis had their durations cut.  Boss level creatures are immune, as are any undead and golems.  But that is hardly "most" spawns on the server.
I may consider lengthening the duration if the proper focus feats are taken, similar to what I did with the summons.