Marketing makes this tough to discern the value of a service like this over the many existing solutions. I'm assuming this is just a cached version of the rendered output of chromium or whatever.
It also operates on the notion that client side apps cannot be spidered, which in a post puppeteer world seems disingenuous. Google certainly doesn't care and they're the most important bot.
Finally, search engines get cranky if you serve them something other than what you serve others. That would worry me.
Client side apps still have a hard time being crawled by bots. You're right that the situation is getting better, but from my research it seems it's hard to crack completely without a pre-rendering solution.
And yea, search engines don't like cloaking, but google themselves say that dynamic rendering is OK and not considered cloaking.
It also operates on the notion that client side apps cannot be spidered, which in a post puppeteer world seems disingenuous. Google certainly doesn't care and they're the most important bot.
Finally, search engines get cranky if you serve them something other than what you serve others. That would worry me.