I do not think anyone makes those kinds of aggressive investments without an expectation of shaping the leadership and management of the company including possible combinations that may be beneficial to your investment portfolio. Plus his statements in those times and what seemed like a coordination with the short critique after he invested, may have gotten the bulletin boards going, whether true or not. But I do not think he was a passive investor nor that that was his original intention.
His fund complex outside the US is subject to different rules. US mutual funds have a lot more problems asserting themselves for a variety of regulatory and tax reasons, but that is not necessarily the case for the kinds of fund entities that Woodford was using.