Question about Independent Component Analysis sorting options

[Djoels]

I recently stumbled upon a 2018 ICA spike sorting paper by @alejoe91 and others, and was wondering: is there any reason why ICA options are not part of SpikeInterface?

Could one deduce that spike sorting is a domain adapted form of ICA which uses the notion of templates and domain-specific constraints and quality metrics to its advantage, where ICA is more generically concerned with untangling signals from multiple sources (such as audio signals, which don't have such constraints like inter spike intervals)?