Easy for a bot to fake that with a random number generator. If nothing else bot authors can collect their own statistics. I understand the bots have an army of people in the background for images they don't understand yet, just collect timing data from that set and have your random number generator emulate that timing data. (I'm guessing a bell curve)
Honestly, that service looks like something I'm almost tempted to pay for myself. $1 per 1000 recaptchas is a lot cheaper than how I value my time, at the very least. It's not like google couldn't pay people to do these ML training datasets; I resent giving them free labour.
Unfortunately I doubt that "recaptcha solver" can be built as browser extension. Most of advanced bots for parsing automation built on proprietary platforms like ZennoPoster and they basically heavily modify Firefox / Chromium.
Also latency of human-recognition service is quite high so while you wouldn't need to solve it you'll need to wait for number of seconds anyway.
Few years ago back when I created such bots I had similar idea .
For certain this can't be mainlined. And if we talk about extensions then at least in past extension code didnt have enough capacities to automatically bypass recaptchas.
This would require fake mouse pointer control and it's obviously not one of features that extension api expose.
