There are some pretty low hanging fruit stuff that would make the PD experience palatable (e.g. ability to page teams not just services, allow for partial overrides). These things for us were <1 week projects.
I do think PD is trying to rectify it by acquiring Jeli, giving it away for free in their new pricing plan, etc. Def feeling the squeeze a bit if I had to guess.
To not give too much of our roadmap away in a public forum, some of the basic components of overrides, paging groups and the web UI - keep your eyes peeled this year, one of our big focus areas is looking at how not only do we eliminate some of these gaps around on-call management and UI, but also going beyond just filling these table stakes. As you might imagine, PagerDuty scaled pretty aggressively (while also keeping our high reliability standards in place - customer trust is our #1 priority, after all we need to be up when everyone else is down), and we've had to make some investments to unlock our roadmap for this upcoming year.
Real talk though, happy to continue the conversation/ meet up over a zoom. Send me an email: dgodbout[@]pagerduty.com. There are humans over here at PagerDuty who care a lot about folks like yourself and I consider myself lucky to get build products for people who are responsible for ensuring things just "work".