Sorry to tell you Dave, the clock is still junk. The 68.3kHz spurs just at 35dBc is a garbage PLL.
That is assuming your spectrum analyzer which is also happened to be of Rigol brand, is a trusted one.
I have attached the reference shots done using my 4360-7 PLL at 1GHz with a proper loop filter. Note my RBW was wider than your 300Hz, and still my screenshots are much better. In the 1MHz span shot: the pedestal is at 60dBc. The 10MHz span shot: PFD spurs +/-2.5MHz from the carrier are at 75dBc.
Sadly, does not seem Rigol is ever going to get it right. They should hire a year 1 electronics college student to redesign the PLL for them.
I hope in your video you did not say the problem is now fixed. Please feel free to use the attached pics in the next revision of your video to inform people what a good PLL spectrum should look like. Side by side with Rigol's they could help deliver a message to Rigol in visual if they have difficulties reading.
EDIT: I took a liberty to make and added a side-by-side picture of Dave's and my PLL screenshots, scaled to the same 10dB/ vertical scale.