As stated in the very first comment on this ticket ... Please DO NOT change the priority of this ticket.
I appreciate that things might "seem ok", but imo this issue is a bit more than "technical debt" i.e. it's a fundamental issue with how we are generating bundles and is destined to be a serious issue, especially once we have multiple versions of Blue Ocean out in the wild, with JS bundles generated with different NPM package versions etc.
It's been a job getting people to take me seriously on this one (e.g. downgrading the priority). Maybe install jenkins-js-modules-chrome-ext in your Chrome browser, open a Blue Ocean instance and take a look at the number of errors and warnings. These are pretty much all relating to this bug in the bundle generation.
Also ... the bundles are "fatter" than they need to be because of this.
As an example from https://ci.blueocean.io (140+ errors detected in dashboard and personalization bundles) ...