Stripe does this, and Coinbase's move to annual equity grants also has a similar effect. There are a lot of tradeoffs in all directions, but the fundamental one is that the reduction in risk naturally carries an equivalent reduction in ability to participate on the upside (eg table at the bottom here: https://www.aeqium.com/post/a-survey-of-equity-refresh-progr...).
You can also argue that it's not good for employees, because downside is capped (stock goes to $0, you keep your salary) but upside is unlimited (Shopify becomes the next Microsoft, you're still driving a Kia).
You can also argue that it's not good for employees, because downside is capped (stock goes to $0, you keep your salary) but upside is unlimited (Shopify becomes the next Microsoft, you're still driving a Kia).