Presumably the objection is that it's not the original title. It's also an odd wording, I think "is interesting to read" might be clearer.
Click baity. It's kind of like but not quite at the level of You won't believe what the RISC-V bit manipulation extension does! Why not just cite the document's name? Bore me. Please.
In fairness to the doc, it's a rationale. It should educate.
We've reverted the title to the original, which the guidelines ask us to use.
Submitted title was "RISC-V Bitmanip Extension proposal is an education", which breaks the rule against editorializing, as well as "Please don't do things to make titles stand out [...] It's implicit in submitting something that you think it's important."