Of course any article can be biased, but this one has cited sources, at least. It would take further digging to determine if those sources are credible.

https://libcom.org/article/starvation-army-twelve-reasons-reject-salvation-army

In my opinion and based on my past reading on the subject, the simple fact that it’s a religious organization is enough to dissuade me from giving them anything. It is no small statistic that religious organizations are corrupt, hypocritical, expect obedience over tolerance, anti-union, anti-LGBTQ, ultra-conservative, and generally support the notion that people must be submissive to their authority.

I’ll continue to donate to secular organizations that do genuine good.