This may very well be true, but letting that factor into our traffic management policies is dangerous, and breeds the exact culture of stupidity that "necessitates" LRTs to slow down for intersections.
When it comes to insanely heavy vehicles that can't stop on a dime, why does a bus vs. a tram matter? If you dart out in front of them outside of their respective stopping distances, they will grievously injure you - and if the bus doesn't hit you, it could be because it swerved out into the next lane and may even have hit something that was in its way there. Is it okay if someone gets injured or killed if it's done by a bus with a shorter stopping distance, compared with a tram with a longer stopping distance? The risk is always there. Not to mention all the other dangerous ways a bus ride could go south - we let them travel at high speeds, with standing loads, on the 400 series highways! If we applied this level of risk reduction to our bus network, buses would certainly never travel than 50 km/h, and probably not be allowed standees either.
Playing chicken with all heavy vehicles is insanely dangerous - hell, if a bike, clipping along at 20-25 km/h ploughed directly into someone, it could do some serious damage as well - so if we really want to make sure people are safe from heavy vehicles, then yes, I would expect all of them to be required to slow down entering an intersection. What about trains? How come we're not all up in arms about the fact that level crossings often have zero additional barriers to entry for anyone who decided to just walk around the barrier?
Unless someone wanted to introduce lowered speed limits for any grade integrated heavy vehicle, singling out LRVs specifically seems like concern trolling intended to discredit the whole concept of a tram.