目前分词成分剖析

Regulators were often overpowered by blitzscaling startups, rushing for size.

请问老师，最后的分词作哪一类状语？

Expert 剖析有误。

Regulators were often overpowered by blitzscaling startups, rushing for size.

【翻译】监管机构总是忍受不了闪电式创业的企业，（由于这类企业）争先恐后地扩大规模。

rushing for size 是目前分词短语，作startups（创业公司）的非限制性定语，暗含着缘由，startups 是其逻辑主语。不是“结果状语”。