With Tethers monthly trading volume about 18% higher than that of Bitcoin, its arguably the most important coin in the crypto ecosystem. Tethers also one of the main reasons why regulators regard cryptocurrencies with a wary eye, and have put the breaks on crypto exchange-traded funds amid concern of market manipulation.
Ignoring the half-truth tidbit used by the article as clickbait, I would actually argue that Tether isn't all that important for the crypto ecosystem. It's true that the role it plays is vital to crypto trading, but it's also disposable in that there are a lot of other stablecoins that can take its place should it collapse. Sure Tether collapsing would be a big deal, but Bitcoin collapsing would mean the end of crypto as we know it; which is the most important coin in the crypto ecosystem now?