Heysel has managed to establish itself and become weaponised since 1985 (not 1986) for two principal reasons.
Firstly, Liverpool’s (club and supporters) subsequent inability to take responsibility or treat it solemnly enough: continued blame of extraneous, tenuous (at best) factors; refusal to refer to it in honest terms (‘collapsing wall’); lack of respect for its anniversary (in stark contrast with that for Hillsborough). They want to reshape the narrative, and extinguish the actual cause from history, and they shouldn’t be allowed to, which your approach would surely aid and abet (not talking specifically about ‘murderers’ references, but more generally).
Secondly, given their developing predilection for being unable to accept responsibility and blame for events in recent years, Heysel is the apotheosis of this, and provides the best platform to expose this trait to comical effect: Chelsea fans, Belgian skinheads, Juventus fans.
So , when you think about it, in actual fact, the rise in references to Heysel, are ultimately the fault of Liverpool fans…