I can see if rivals were 'aping' their software, whatever that means, that Eug might get angry. It's another thing to engage in this kind of retaliatory behavior because not only can it lead to data loss for users caught in this juvenile dispute but raises other grave questions about what else they might engage in.
Most worrisome is what other unscrupulous behavior is he willing to engage in? Is he willing to do the bidding of the motherland at the expense of the trust customers put into the product?