Getting root-privileges at runtime of an application is always a problem. More or less the option you have mentioned (more simple to open a terminal-session with requesting some alternative) is the only one besides the more complicated ways. Perhaps su can make a help here as it is mostly common on all Nix-systems and alike.
But I thought we (team) were clear about the point: When a package is removed (now) it won't return until someone is there for porting it towards HyperbolaBSD / OpenBSD. At the moment I'm focussed full only on 0.4.3 and same for the others on HyperbolaBSD. So there is no time for tblock. If you have interest you are surely invited to step up as maintainer for this package, including also tblock-gui at a point when this is made possible perhaps. So for sure everyone in the community is also invited for trying porting, first for OpenBSD and later on for HyperbolaBSD. All kind of support is always welcome!
Human being in favor with clear principles and so also for freedom in soft- and hardware!
Certainly anyone who has the power to make you believe absurdities has the power to make you commit injustices: For a life of every being full with peace and kindness, including diversity and freedom. Capitalism is destroying our minds, the planet itself and the universe in the end!