Interesting comment for so many reasons... One of the most tenacious misconceptions about the HL5 is that it's a fast blade, but it isn't. Read here:
https://ttgearlab.wordpress.com/2019/02/18/dhs-hurricane-long-5-3-overview-lab-test/
Long 5 is only a bit faster than Korbel, Long 3 is as fast as Korbel. So both are quite slow blades (lower end of off), regardless of DHS claiming that especially the HL5 it is an Off+ blade. That's just marketing. One comment on revspin (where HL5 has a totally nuts speed rating of 9.6!!!) sums up the whole thing quite well:
"I think the review of HL5 is the exact reason why reviews on revspin can be misleading and that you have to take them with a grain of salt. Anyone with some level of knowledge in TT equipment would know that there is just no way this blade can be faster than some of the obviously faster blades like Primorac / Schlager carbon, many of the ZLCs or ALCs with outer carbon placement. HL5 is a great blade in a sense that if does offer more control than the aforementioned blades and is more suitable for loopers."
Also watch this video with Dan's and Dima's review of the Donic Ovtcharov No 1 Senso:
Watch the video from 8:21. Here Dima explains that he was dissatisfied with his previous blade (too fast and uncontrolled) and how Ma Long helped him to find a new slower blade. What he is revealing here is that Ma Long gave him the idea to clone the HL5/W698 with his then contract partner Donic.
So to return to your reply. The speed rating of the Donic blade on revspin seems to be adequate, the speed rating of the HL5 certainly is not. The HL5 should have a similar rating as the Donic blade. Moral: never believe revspin!