Yeah, you are very right.
If you start peaking success, you realize that while your happy path may work for 70% of real cases, it's not really optimal to convert for most of them. Sentry helps a lot, you see session replay, you get excited.
You realize you can A/B test... but you need a tool for that...
Problem: Things like Openreplay will just crash and not restart themselves, with multiple container setups, some random part going down will just stop your session collection, without you noticing.. try to debug that? Goodluck, it'll take at least half a day. And often, you restore functionality, only to have another random error take it down a couple of months later, or you realize, the default configuration is only to keep 500mb of logs/recordings (what), etc, etc...
You realize you are saving $40/month for a very big hassle and worse, it may not work when you need it. You go back to sentry etc..
Does Canine change that?
Canine just makes deploying sentry / grafana / airbyte + 15k other OS packages a one click install, which then just gives you a URL you can use. Because its running on top of kubernetes, a well built package should have healthchecks which will detect an error and auto-restart the instance.
Obviously if [name your tool] is built so that it can be bricked [1], even after a restart, then you'll have to figure it out. Hopefully most services are more robust than that. But otherwise, Kubernetes takes care of the uptime for you.
[1] This happened with a travis CI instance we were running back in the day that set a Redis lock, then crashed, and refused to restart so long as the lock was set. No amount of restarts fixed that, it required manual intervention