To each his own. Mandating a provision for the convenience of the recordkeeper seems to me to be a bad business decision, and one that should weigh in on the fiduciaries' decision on who to engage for those purposes. That said, having "defaults" clearly is needed to manage the volume of changes.
We took the position that if the plan had a $5,000 cash out limit, we would "default" them to $7,000, with ample opportunity to opt out of the default and select a different (lower) limit. We "defaulted" all others to staying at the limit they had in their plan (and most were $1,000 to avoid the IRA requirement). We did have some opt for something different than the defaults (both of them), but not many.